FROG DISSECTION. a. Why is there a difference in size proportion between the hind and fore limbs?
|
|
- Nigel Daniel
- 5 years ago
- Views:
Transcription
1 FROG DISSECTION External Anatomy 1. The division of a frog s body includes the head, trunk and limbs. Examine the front and hind limbs of the frog. The hind limbs are the long, more muscular limbs of the frogs. Find the digits, which are finger like projections on the forelimbs and hind limbs. The limbs of a frog consist of an upper arm, wrist, hand and fingers (digits). On a mature male frog there is a pad located on the innermost finger of the forelimbs. This pad is used by a male to grasp a female during mating and ensures the male stays in contact with the female as her eggs are fertilized when they re released into the water. a. Why is there a difference in size proportion between the hind and fore limbs? 2. Notice the size and location of the frog s eyes. a. How does the location of the frog s eyes help improve its vision? 3. A frog doesn t chew its prey but uses its eyes to help gulp food down. Press down the eyes of the frog. a. Explain how the eyes help in gulping food. 4. Frogs have a special third eyelid covering their eye known as the nictitating membrane. This membrane covers the eye when the frog is under the water. a. How is this covering an adaptation for the frog? 5. Observe the brow spot found between and anterior to the two eyes. This organ is the remaining indication of a third or middle eye. It was a photo-sensory organ active in triggering hormone production (including reproduction) and thermoregulation. 6. There are two openings on the anterior and dorsal part of the skull. These are the external nares (nostrils) which are used to take in oxygen when a frog s mouth is full of food. 7. Locate the tympanic membrane or the eardrum located on each side of the head. These are used to detect sound waves. 8. Pry open them mouth. Use the scissors to cut the corners of the mouth where the maxilla (upper jaw) and mandible (lower jaw) join together. Examine the frog s mouth. Locate the tongue, which is a muscular, sticky flap on a living frog. A grass uses a flip and grab technique to catch its prey. a. Describe where the tongue is located in the frog s mouth. b. How is this location an adaptation for a feeding frog? 9. Feel the maxillary teeth that are found along the rim of the upper jaw. Notice that only the upper jaw has these teeth. These teeth are used to make sure captured prey does not escape, if not all the way in the mouth. Find the two vomerine teeth attached to the skull bones of the roof of the mouth. These teeth are used to position prey directly over the gullet. 10. Locate the internal nares, which are found slightly above and on either side of the vomerine teeth. These are connected to the external nares.
2 11. On either side of the upper jaw near the jaw hinge, locate the openings to the Eustachian tubes. The Eustachian tube openings lead to each ear and ensure equal air pressure on both sides of the tympanic membrane. 12. Find the gullet, which is the wide opening leading to the esophagus. The esophagus is the first tube of the alimentary (digestive) canal leading to the stomach. Below the gullet is the glottis, a small slit like opening leading to the trachea and the rest of the respiratory system. 13. Sound is produced only in male frogs as moving air passes between vibrating vocal cords, as well as by rapid expulsion of air from paired vocal sacs, which are located on either side of the lower jaw near the jaw hinge. Internal anatomy of a frog 14. Place the frog on its dorsal side in the dissecting pan. To hold the frog in position, place dissecting pins through the tip of the snout and each of the legs as shown in Figure 1 Figure With the forceps, lift the skin and insert the point of the scissors to right of the midline near the pelvis. Make the first incision from the pelvis to the throat as shown by line a in Figure At the forelimbs and the hind limbs, make transverse cuts on the lines b, c, d, and e as shown in Figure 1. Use dissection pins to hold the flaps of skin back. 17. Locate the linea alba, or narrow white line of connective tissue between the abdominal muscles. This is what divides Mr. Hathaway s six pack. You will also see a ventral abdominal vein. 18. Make an incision to the right of the linea alba through the muscles from the pelvis to the throat as in step 1. Note: Be careful not to damage underlying organs as you cut through the muscle layers. Make transverse cuts from this incision at the same places that cuts were made in step Carefully cut through the sternum that lies between the forelimbs. Fold and pin back the muscles. 20. Once inside the frog, you will see the peritoneum, a thin membrane covering the body cavity. Cut or peel away this membrane, which protects and suspends internal organs. 21. If your frog is a mature female, the body cavity may be filled with black-colored eggs covering the transparent ovaries. Remove the eggs and ovaries if they are present. 22. Find the heart in the center of the chest cavity. Notice that the heart lies in a thin sac called the pericardium. Remove the pericardium to observe the three-chambered heart. The two, dark-walled chambers, called atria, receive blood. The right atrium receives deoxygenated blood from the veins of the frog s body. The left atrium receives oxygenated blood from the lungs. Each atrium empties into the ventricle, which is the lighter-colored, thick-walled part of the heart. The large vessel forming a y-shape at the anterior end of the ventricle is the conus arteriosus. Blood is pumped from the ventricle to the conus arteriosus where it will then be pumped through a system of arteries to the rest of the frog. a. Why do frogs have a three-chambered heart (a fish has two chambers and birds and mammals have four chambered hearts)?
3 23. Locate the two lungs. They are small, spongy brown sacs that lie to the right and left of the heart. Look for the bronchial tubes that extend from the anterior part of the lungs and join with the trachea. Insert a dropper into the glottis and pump air into the lungs. Observe what happens. 24. Locate the large reddish-brown liver in the anterior of the body cavity. The liver is used to make the digestive enzyme bile. a. How many lobes are there? 25. Lift up the liver and attached to the underside will be the small transparent gall bladder. It is usually filled with green bile that is made in the liver and stored here. The bile duct, brings bile from the gall bladder to the duodenum. 26. Curving from underneath the liver, is the large, white, tubular stomach. The stomach is the first site for chemical and mechanical digestion and narrows at the pylorus, where it connects to the small intestine. Inside the pylorus is the pyloric sphincter which is a muscle used to regulate food entering the small intestine from the stomach. 27. The duodenum is the short, uncoiled first section of the small intestine where bile enters from the gall bladder. The middle part of the small intestine is the jejunum. The last part of the small intestine is the ileum. Absorption of digested nutrients occurs in the small intestine, through small folds called villi. The ileum is held together by a membrane called the mesentery. Gently pull on the mesentery and notice all of the blood vessels. a. Why are there so many blood vessels in the mesentery? 28. Also located in the mesentery is a small, reddish-brown, round structure known as the spleen. The spleen is in the lymphatic system and is charge of filtering out dead blood cells and harmful bacteria. 29. The pancreas is a thin, yellowish gland that is difficult to find. It is located in the mesentery between the duodenum and the upper part of the stomach. The pancreas secretes digestive enzymes and can also be put in the endocrine system as it is in charge of creating insulin. Insulin is used to regulate blood sugar levels. 30. The end of the ileum widens to form the large intestine. The colon is one region of the large intestine and is responsible for absorption of water and elimination of solid waste material. 31. The large intestine terminates at the cloaca. The cloaca is a general catch-all basin and opens to the outside of the frog through the cloacal opening. This is where digestive, reproductive, and excretory products are expelled. a. Do mammals such as humans have a cloaca? b. Why or why not? 32. The glottis leads to the trachea which is known as the windpipe in higher animals. The trachea branches into bronchial tubes, which connect to each lung. 33. Push the intestines aside to see the two dark, oblong kidneys attached to the dorsal body wall. Find the, ureter, which is a tube leading out of each kidney. The ureters carry the urinary wastes from the kidney to the urinary bladder. The chemical waste is called urine and is stored in a thin-walled urinary bladder that empties into the cloaca. 34. The adrenal gland is part of the endocrine system and secretes hormones throughout the frog. They can be seen as a yellow stripe on each kidney. The fat bodies are the yellow finger-like structures near each kidney. These structures are used for food during hibernation and nourishing gametes. 35. In male frogs each yellowish, oval-shaped testis is attached by tubes to the kidney. During mating the sperm mixes with and follows the exit route of the urine. In female frogs the two ovaries appear as egg sacs. Eggs released from the ovaries enter a long, coiled oviduct at the anterior opening. Eggs pass down the creamcolored oviduct and are held in a uterus, before entering the cloaca. From the cloaca the eggs pass from the body to be fertilized outside the frog s body.
4 Nervous system and the brain 36. Turn over your frog so that the dorsal side once again faces up. Insert the point of your scissors through the skin at the base of the head and remove the skin from the head area. 37. Bend the frog to determine the approximate region of the neck. Insert your scissors and clip across the upper spinal cord in the region of the neck. 38. Locate the white spinal cord enclosed within the vertebrae. This structure relays information from the brain to the body and the body to the brain. 39. Use your forceps to remove the bone above the spinal cord, working forward until you have reached the nostril area. You will now be able to view the exposed brain as show below 40. Locate the olfactory lobes which are in charge of smell and the optic lobes which are in charge of vision. 41. Locate the cerebrum which is small in size in relation to a human brain. It is here that things like perception, imagination, thought, judgment, and decision occur. a. Why would there be such a proportional size difference between the cerebrum of a frog and the cerebrum of a human? 42. Locate the cerebellum which is just posterior to the optic lobes. This structure is in charge of the coordination of voluntary motor movement, balance and equilibrium and muscle tone. 43. The last brain structure to locate is the medulla oblongata which is in charge of nonvoluntary processes within an animal. Nonvoluntary processes are life functions that an animal doesn t think about to stay alive, such as breathing. a. Give two examples of a nonvoluntary process found in humans. Label the following structures on the diagram below: head region, trunk region, hind limb, forelimb, nictitating membrane, tympanic membrane, external nares and mouth.
5 Label the follow structures on the diagram below: maxillary teeth, vomerine teeth, internal nares, Eustachian tube, gullet, glottis, jejunum, vocal sac opening, tongue, liver, gall bladder, bile duct, stomach, pylorus, duodenum, ileum, large intestine, cloaca, mesentery, spleen, and pancreas
6 Label the follow structures on the female frog: fat body, urinary bladder, cloaca, ureter, kidney, ovary, oviduct Label the follow structures on the male frog: fat body, urinary bladder, cloaca, testis, ureter, kidney
Frog Dissection Information Manuel
Frog Dissection Information Manuel Anatomical Terms: Used to explain directions and orientation of a organism Directions or Positions: Anterior (cranial)- toward the head Posterior (caudal)- towards the
More informationAP Biology Exercise #20 Chordates - Reptiles Lab Guide
AP Biology Exercise #20 Chordates - Reptiles Lab Guide TURTLES and TORTOISES Turtles have had over 200 million years to evolve and have outlived the dinosaurs to become one of the oldest living families
More informationCHARACTERISTICS OF AMPHIBIANS
AMPHIBIAN NOTES "Amphibian" comes from the Greek meaning "both life". Amphibians can live on water and on land. Scientist infer that amphibians evolved from lobe-finned fishes called crossopterygians.
More information30-3 Amphibians Slide 1 of 47
1 of 47 What Is an Amphibian? What Is an Amphibian? An amphibian is a vertebrate that, with some exceptions: lives in water as a larva and on land as an adult breathes with lungs as an adult has moist
More informationChapter 42 Amphibians
Chapter 42 Amphibians I. Origin and Evolution of Amphibians A. Early Amphibians 370 million years ago B. Shared characteristics with lobe finned fishes (coelacanth) 1. Pectoral Fins/Pelvic fins homologous
More informationRecommended Resources: The following resources may be useful in teaching this
Unit B: Anatomy and Physiology of Poultry Lesson1: Internal Anatomy of Poultry Student Learning Objectives: Instruction in this lesson should result in students achieving the following objectives: 1. Identify
More informationCharacteristics of a Reptile. Vertebrate animals Lungs Scaly skin Amniotic egg
Reptiles Characteristics of a Reptile Vertebrate animals Lungs Scaly skin Amniotic egg Characteristics of Reptiles Adaptations to life on land More efficient lungs and a better circulator system were develope
More informationVertebrates. skull ribs vertebral column
Vertebrates skull ribs vertebral column endoskeleton in cells working together tissues tissues working together organs working together organs systems Blood carries oxygen to the cells carries nutrients
More informationA. Body Temperature Control Form and Function in Mammals
Taxonomy Chapter 22 Kingdom Animalia Phylum Chordata Class Mammalia Mammals Characteristics Evolution of Mammals Have hair and First appear in the mammary glands Breathe air, 4chambered heart, endotherms
More informationName Class Date. After you read this section, you should be able to answer these questions:
CHAPTER 14 4 Vertebrates SECTION Introduction to Animals BEFORE YOU READ After you read this section, you should be able to answer these questions: How are vertebrates different from invertebrates? How
More informationShannon Martinson, BSc, DVM, MVSc, DACVP Department of Pathology and Microbiology Atlantic Veterinary College, University of Prince Edward Island
Shannon Martinson, BSc, DVM, MVSc, DACVP Department of Pathology and Microbiology Atlantic Veterinary College, University of Prince Edward Island Reptile pathology: Performing a necropsy Do a careful external
More informationBiology Slide 1 of 50
Biology 1 of 50 2 of 50 What Is a Reptile? What are the characteristics of reptiles? 3 of 50 What Is a Reptile? What Is a Reptile? A reptile is a vertebrate that has dry, scaly skin, lungs, and terrestrial
More informationCOMPARATIVE VERTEBRATE HISTOLOGY ZOO 4756c Syllabus for Fall 2018
COMPARATIVE VERTEBRATE HISTOLOGY ZOO 4756c Syllabus for Fall 2018 Instructor: Frank T. Logiudice Office: Biology Building, Room 202c Office Phone Number: (407) - 823-2495 Email Address: Frank.Logiudice@ucf.edu
More informationDigestive System Dissection
Digestive System Dissection THE TERMS YOU NEED FOR THE PRACTICAL ARE IN THIS DISSECTION GUIDE. Instructions: Do one of the 2 respiratory dissections, and then the digestive dissection. Wordlist for cat
More informationVertebrates. Vertebrate Characteristics. 444 Chapter 14
4 Vertebrates Key Concept All vertebrates have a backbone, which supports other specialized body structures and functions. What You Will Learn Vertebrates have an endoskeleton that provides support and
More informationSustainable Resources 11. Poultry Unit: Chicken Anatomy
Sustainable Resources 11 Poultry Unit: Chicken Anatomy The Chicken Birds: Class AVES are winged, bipedal, endothermic (warm-blooded), egg-laying, vertebrates. Chicken: Gallus gallus are a domesticated
More informationBirds & Mammals. Chapter 15
Birds & Mammals Chapter 15 What is a Bird? Vertebrate Endothermic Feathered 4 chambered heart Egg laying Fore-limbs adapted for flight Bones nearly hollow (allow for lighter weight) Bird Internal Anatomy
More informationBiology. Slide 1of 50. End Show. Copyright Pearson Prentice Hall
Biology 1of 50 2of 50 Phylogeny of Chordates Nonvertebrate chordates Jawless fishes Sharks & their relatives Bony fishes Reptiles Amphibians Birds Mammals Invertebrate ancestor 3of 50 A vertebrate dry,
More informationMost amphibians begin life as aquatic organisms and then live on land as adults.
Section 3: Most amphibians begin life as aquatic organisms and then live on land as adults. K What I Know W What I Want to Find Out L What I Learned Essential Questions What were the kinds of adaptations
More informationAmphibians. Land and Water Dwellers
Amphibians Land and Water Dwellers Amphibians Most amphibians do not live completely in the water or completely on land and most must return to water to reproduce http://potch74.files.wordpress.com/2007/09/amphibians.jpg
More informationAlimentary System 解剖學科徐淑媛
Alimentary System 解剖學科徐淑媛 本堂重點 1. Structures derived from primitive guts 2. Specific events Alimentary System endoderm of primordial gut epithelium & glands of digestive tract ectoderm of stomodeum epithelium
More informationA. Frogs can reduce water loss by having less porous skin (bags of skin can be eaten to retain moisture)
Name: Biology Review: Amphibians 1-6. Amphibians were the first group of vertebrates to adapt to a land existence. What were three conditions amphibians had to deal with coming on to land and how did they
More informationCOMPARATIVE HISTOLOGY SLIDE SETS
COMPARATIVE HISTOLOGY SLIDE SETS Cat #: CH-COMP1 - COMPARATIVE EPITHELIUM & CONNECTIVE TISSUE SLIDE SET - 28 slides 1 - Surface of Simple squamous epithelium (silver staining) 2 - Simple squamous epithelium
More informationFishes, Amphibians, Reptiles
Fishes, Amphibians, Reptiles Section 1: What is a Vertebrate? Characteristics of CHORDATES Most are Vertebrates (have a spinal cord) Some point in life cycle all chordates have: Notochord Nerve cord that
More informationBiology Review: Amphibians
Name: Biology Review: Amphibians NOTE: USE THE SCANNED CHAPTER ON MY WEBSITE, NOT YOUR TEXTBOOK FOR THIS ASSIGNMENT 1-6. Amphibians were the first group of vertebrates to adapt to a land existence. What
More informationAnimalia: Frog. Page 1
wrong 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 right 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 score 100 98.9
More information1. Hair 2. Mammary glands produce milk 3. Specialized teeth 4. 3 inner ear bones 5. Endothermic 6. Diaphragm 7. Sweat, oil and scent glands 8.
Class Mammalia The Mammals Key Characteristics of Mammals 1. Hair 2. Mammary glands produce milk 3. Specialized teeth 4. 3 inner ear bones 5. Endothermic 6. Diaphragm 7. Sweat, oil and scent glands 8.
More informationPhylum Echinodermata. Biology 11
Phylum Echinodermata Biology 11 General characteristics Spiny Radial symmetry Water vascular system Endoskeleton Endoskeleton Hard, spiny, or bumpy endoskeleton covered with a thin epidermis. Endoskeleton
More informationRoslyn Watts Southern Biological
Roslyn Watts Southern Biological Why Dissect Rats? Common research animal. Easy to breed. Large litters. Easy care. Placental Mammal like us. Similar internal organs & systems. Hands on practical study.
More informationVocabulary Review. Use the words below to fill in the blanks with terms from. Completion the chapter.
Chapter Chapter 30 # xnonvertebrate Title Chordates, Fishes, and Amphibians Vocabulary Review Matching In the space provided, write the letter of the definition that best matches each term. 1. cartilage
More informationCAT DISSECTION A LABORATORY GUIDE
8546d_fm_i-iv 6/26/02 3:51 PM Page 3 mac62 mac62:1253_ge: CAT DISSECTION A LABORATORY GUIDE CONNIE ALLEN VALERIE HARPER Edison Community College John Wiley & Sons, Inc. 8546d_fm_i-iv 6/26/02 12:17 PM Page
More informationDIY POST MORTEM TECHNIQUE FOR CATTLEMEN
DIY POST MORTEM TECHNIQUE FOR CATTLEMEN A photographic guide for cattle post mortems Prepared by Dr. Ann Britton, Animal Health Centre, BCMA, Abbotsford, BC DIY Post Mortem for Cattlemen Post mortem evaluation
More informationKINGDOM ANIMALIA Phylum Chordata Subphylum Vertebrata Class Reptilia
KINGDOM ANIMALIA Phylum Chordata Subphylum Vertebrata Class Reptilia Vertebrate Classes Reptiles are the evolutionary base for the rest of the tetrapods. Early divergence of mammals from reptilian ancestor.
More informationFlatworms Flatworms Platyhelminthes dorsoventrally free-living planarian parasitic fluke tapeworm label three body layers ectoderm mesoderm
Flatworms Flatworms are in the phylum Platyhelminthes. Flatworms are flattened dorsoventrally (top to bottom). The group includes the freshwater, free-living planarian and the parasitic fluke and tapeworm.
More informationGrasshopper Dissection
Grasshopper Dissection External Observation Locate the head, thorax, and abdomen. Observe the head. Locate the two compound eyes and the three simple eyes. 1. Why do you think grasshoppers have two types
More informationNECROPSY FORM STRAND LOCATION: FLOATING IN VAQUITA REFUGE BY MX TIME: 10 AM
NECROPSY FORM FIELD #: Ps 9 NECROPSY DATE: April 4 2018 SPECIES: PHOCOENA SINUS STRAND DATE: March 28 2018 AGE CLASS: ADULT STRAND LOCATION: FLOATING IN VAQUITA REFUGE BY MX NAVY, BAJA CALIFORNIA, MX SEX:
More informationHoney Bees. Anatomy and Function 9/26/17. Similar but Different. Honey Bee External Anatomy. Thorax (Human Chest): 4 Wings & 6 Legs
Honey Bee Anatomy and Function How Honey Bees are Built and How the Function People Eat: Everything - Meat and Potatoes Omnivores Meat and Vegetables Digest: Stomach & Intestines Excrete: Feces and Urine
More informationDigestive & Respiratory System Anterior Respiratory Dissection
Digestive & Respiratory System Anterior Respiratory Dissection We will be looking at both systems during this dissection. The cat respiratory dissection WILL BE ON THE NEXT LAB PRACTICAL!! We will do 2
More informationPhylum Platyhelminthes Flatworms
Phylum Platyhelminthes Flatworms The Acoelomates The acoelomates are animals that lack a coelom. Acoelomates lack a body cavity, and instead the space between the body wall and the digestive tract is filled
More informationMystery of Life Travelling Exhibition Vertebrate Kingdom
Mystery of Life Travelling Exhibition Vertebrate Kingdom When science meets art, what will happen? Vertebrate exhibition, it s a perfect convergence of the technique and art, where you can learn not only
More informationEvolution of Amphibians
Section 30 3 30 3 Amphibians 1 FOCUS Objectives 30.3.1 Describe what an amphibian is. 30.3.2 Summarize events in the evolution of amphibians. 30.3.3 Explain how amphibians are adapted for life on land.
More information08 AMPHIBIANS & REPTILES (B) AND HERPETOLOGY (C) TRAINING HANDOUT By Karen L. Lancour
08 AMPHIBIANS & REPTILES (B) AND HERPETOLOGY (C) TRAINING HANDOUT By Karen L. Lancour This event will test knowledge of amphibians, turtles, crocodiles & reptiles. The Official National List will be used
More information(D) fertilization of eggs immediately after egg laying
Name: ACROSS DOWN 24. The amniote egg (A) requires a moist environment for egg laying (B) lacks protective structures for the embryo (C) has membranes enclosing the developing embryo (D) evolved from the
More informationVERTEBRATE READING. Fishes
VERTEBRATE READING Fishes The first vertebrates to become a widespread, predominant life form on earth were fishes. Prior to this, only invertebrates, such as mollusks, worms and squid-like animals, would
More informationAnimal Form and Function. Amphibians. United by several distinguishing apomorphies within the Vertebrata
Animal Form and Function Kight Amphibians Class Amphibia (amphibia = living a double life) United by several distinguishing apomorphies within the Vertebrata 1. Skin Thought Question: For whom are integumentary
More informationTaxonomy. Chapter 20. Evolutionary Development Diagram. I. Evolution 2/24/11. Kingdom - Animalia Phylum - Chordata Class Reptilia.
Taxonomy Chapter 20 Reptiles Kingdom - Animalia Phylum - Chordata Class Reptilia Order Testudines - turtles Order Crocodylia - crocodiles, alligators Order Sphenodontida - tuataras Order Squamata - snakes
More informationDiapsida. BIO2135 Animal Form and Function. Page 1. Diapsida (Reptilia, Sauropsida) Amniote eggs. Amniote egg. Temporal fenestra.
Diapsida (Reptilia, Sauropsida) Vertebrate phylogeny Mixini Chondrichthyes Sarcopterygii Mammalia Pteromyzontida Actinopterygii Amphibia Reptilia! 1! Amniota (autapomorphies) Costal ventilation Amniote
More information1. Examine the specimens of sponges on the lab table. Which of these are true sponges? Explain your answers.
Station #1 - Porifera 1. Examine the specimens of sponges on the lab table. Which of these are true sponges? Explain your answers. 2. Sponges are said to have an internal special skeleton. Examine the
More informationDiapsida. BIO2135 Animal Form and Function. Page 1. Diapsida (Reptilia, Sauropsida) Amniote egg. Membranes. Vertebrate phylogeny
Diapsida (Reptilia, Sauropsida) 1 Vertebrate phylogeny Mixini Chondrichthyes Sarcopterygii Mammalia Pteromyzontida Actinopterygii Amphibia Reptilia!! Amniota (autapomorphies) Costal ventilation Amniote
More informationMammals. Introduction (page 821) Evolution of Mammals (page 821) Form and Function in Mammals (pages ) Chapter 32.
Chapter 32 Mammals Section 32 1 Introduction to the Mammals (pages 821 827) This section describes the characteristics common to all mammals, as well as how mammals carry out life functions. It also briefly
More informationIdentifying Plant and Animal Adaptations Answer Key
Identifying Plant and Animal Adaptations Answer Key Instructions: Review the provided photos on the ipad. Try to identify as many adaptations for each plant or animal and determine how each adaptation
More informationField necropsy techniques in mammal and poultry
Field necropsy techniques in mammal and poultry Kidsadagon Pringproa, DVM, MS, PhD Department of Veterinary Biosciences and Veterinary Public Health Faculty of Veterinary Medicine Chiang Mai University
More informationIt is late January in the Appalachian Mountains. In a rocky
32 1 Introduction to the Mammals It is late January in the Appalachian Mountains. In a rocky den beneath the snowdrifts, a black bear has just given birth. Two tiny cubs are nursing on their mother s rich
More informationIt is late January in the Appalachian Mountains. In a rocky
32 1 Introduction to the Mammals Section 32 1 It is late January in the Appalachian Mountains. In a rocky den beneath the snowdrifts, a black bear has just given birth. Two tiny cubs are nursing on their
More informationPAGE. mage. Cut open. the top of the cat. preservative fluid. the sink. Place the cat. dissection area. of the ziploc bag, Ziploc bag.
Step. Let the cat out of the bag! First, you will need the following supplies: Large Dissecting Tray Cat in a bag! You may also want a small dissecting pan, to keep you tools in. Now, get a cat. It is
More informationChapter 5 Male and female reproductive systems
Chapter 5 Male and female reproductive systems This chapter begins with a description of the male and female reproductive systems followed by a section on sex determination. A good knowledge of the anatomy
More informationDinner Time! Slurp... Crunch... Gulp! Make way for animal digestion!
lesson inner Time! Slurp... runch... Gulp! Make way for animal digestion! What was the last thing you ate? hances are, it s still making its way around your body. From the first bite of food, your body
More informationMechanism of a Crocodile s Circulatory System
Mechanism of a Crocodile s Circulatory System Figure 1. A crocodile diving at Botswana (Nachoum, A. 2017) Ever wonder in one of those animal documentaries we watch in television, wherein a crocodile glides
More informationBeef... Beef Natural Contamination... Beef liver...
Human... Human Natural Contamination... Human amniotic fluid... Human bile... Human blood... Human brain... Human breast... Human breast milk... Human cervix... Human colon... Human endometrium... Human
More informationVertebrates. Vertebrates are animals that have a backbone and an endoskeleton.
Vertebrates Vertebrates are animals that have a backbone and an endoskeleton. The backbone replaces the notochord and contains bones called vertebrae. An endoskeleton is an internal skeleton that protects
More informationDiversity of Animals
Classifying Animals Diversity of Animals Animals can be classified and grouped based on similarities in their characteristics. Animals make up one of the major biological groups of classification. All
More informationReproduction in Seed Plants (pp )
Structure and Function of Plants Reading/Notetaking Guide Reproduction in Seed Plants (pp. 388 397) This section gives examples of the group of seed plants known as gymnosperms and angiosperms and describes
More informationFrom Reptiles to Aves
First Vertebrates From Reptiles to Aves Evolutions of Fish to Amphibians Evolution of Amphibians to Reptiles Evolution of Reptiles to Dinosaurs to Birds Common Ancestor of Birds and Reptiles: Thecodonts
More informationClass Reptilia Testudines Squamata Crocodilia Sphenodontia
Class Reptilia Testudines (around 300 species Tortoises and Turtles) Squamata (around 7,900 species Snakes, Lizards and amphisbaenids) Crocodilia (around 23 species Alligators, Crocodiles, Caimans and
More informationVeterinary Science Preparatory Training for the Veterinary Assistant. Floron C. Faries, Jr., DVM, MS
Veterinary Science Preparatory Training for the Veterinary Assistant Floron C. Faries, Jr., DVM, MS Post-Mortem Examinations Floron C. Faries, Jr., DVM, MS Objectives Define necropsy Discuss the importance
More informationCHAPTER 3 EATING HABIT OF ANIMALS
JABAL FARASAN INTERNATIONAL SCHOOL, RABEGH KSA Affiliated to CBSE New Delhi SCIENCE-CLASS III-CHAPTER-WISE WORKSHEET-2 STUDENT NAME... ROLL NO. DATE CHAPTER 3 EATING HABIT OF ANIMALS I. FILL IN THE BLANKS
More informationChapter 11: Echinoderms. Spiny-skinned Invertebrates
Chapter 11: Echinoderms Spiny-skinned Invertebrates Echinoderms Kingdom: Animalia Phylum: Echinodermata ( spiny skin ) Invertebrates Radial symmetry No body segmentation Includes: sea stars, sea urchin,
More informationSec KEY CONCEPT Amphibians evolved from lobe-finned fish.
Wed 4/26 Activities Learning Target Class Activities *attached below (scroll down)* Website: my.hrw.com Username: bio678 Password:a4s5s Students will describe the adaptations of amphibians that help them
More informationFish 2/26/13. Chordates 2. Sharks and Rays (about 470 species) Sharks etc Bony fish. Tetrapods. Osteichthans Lobe fins and lungfish
Chordates 2 Sharks etc Bony fish Osteichthans Lobe fins and lungfish Tetrapods ns Reptiles Birds Feb 27, 2013 Chordates ANCESTRAL DEUTEROSTOME Notochord Common ancestor of chordates Head Vertebral column
More informationAll about snakes. What are snakes? Are snakes just lizards without legs? If you want to know more
Novak.lisa@gmail.com Day 83 12/29/2017 All about snakes What are snakes? Are snakes just lizards without legs? If you want to know more keep reading to find out the answers to the question. The purpose
More information2 nd Term Final. Revision Sheet. Students Name: Grade: 11 A/B. Subject: Biology. Teacher Signature. Page 1 of 11
2 nd Term Final Revision Sheet Students Name: Grade: 11 A/B Subject: Biology Teacher Signature Page 1 of 11 Nour Al Maref International School Riyadh, Saudi Arabia Biology Worksheet (2 nd Term) Chapter-26
More informationAnatomy. Name Section. The Vertebrate Skeleton
Name Section Anatomy The Vertebrate Skeleton Vertebrate paleontologists get most of their knowledge about past organisms from skeletal remains. Skeletons are useful for gleaning information about an organism
More informationBIOL241 & BIOL242 Links to Useful www Sites 2012
Links to Study and Review Sites in Anatomy and Physiology Histology - Study of Tissue Types Histology Practice Exam at Gateway CC http://www.gwc.maricopa.edu/class/bio201/histoprc/prac1q.htm Histology
More informationREPTILES. Scientific Classification of Reptiles To creep. Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Reptilia
Scientific Classification of Reptiles To creep Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Reptilia REPTILES tetrapods - 4 legs adapted for land, hip/girdle Amniotes - animals whose
More informationVertebrate Structure and Function
Vertebrate Structure and Function Part 1 - Comparing Structure and Function Classification of Vertebrates a. Phylum: Chordata Common Characteristics: Notochord, pharyngeal gill slits, hollow dorsal nerve
More informationse bf placing an "Xi in the 20. _X 10. Birds waterproof their feothers with oil, taken from a gland at the base of their tail.
Name: See resources on my website to COfT\plete thjs assignment. Mark each statement below true or fa l se bf placing an "Xi in the apropriate column. Then without lifting your pencil connect in numerical
More informationPhylum Mollusca (mollis, soft)
Phylum Mollusca Phylum Mollusca (mollis, soft) Body usually an anterior head, ventral foot and a dorsal visceral mass. Covered by a fleshy outgrowth of the body wall called a mantle. Shell if present is
More informationMollusks. Ch. 13, pgs
Mollusks Ch. 13, pgs. 364-368 368 Characteristics of Mollusks Mollusks have Bilateral Symmetry Most mollusks live in water, but some live on land. Examples of mollusks are snails, clams, and squids. Body
More informationBREATHING WHICH IS NOT RESPIRATION
BREATHING WHICH IS NOT RESPIRATION Breathing vs. Respiration All animals respire. A lot of people think respiration means breathing- this is not true! Breathing is the physical process of inhaling oxygen
More informationTable of Contents. About the Author. Preface. Acknowledgments. Part One: Performing the Feline Physical Examination
Table of Contents About the Author Preface Acknowledgments Part One: Performing the Feline Physical Examination 1Setting the Stage: Feline-Friendly Practice 1.1 Challenges Faced in Feline Practice 1.2
More informationPhylogeny of Animalia (overview)
The Diversity of Animals 2 Chapter 23 Phylogeny of Animalia (overview) Key features of Chordates Phylum Chordata (the Chordates) includes both invertebrates and vertebrates that share (at some point in
More informationCHAPTER 26. Animal Evolution The Vertebrates
CHAPTER 26 Animal Evolution The Vertebrates Impacts, Issues: Interpreting and Misinterpreting the Past No one was around to witness the transitions in the history of life Fossils allow us glimpses into
More informationHERPETOLOGY. Name: School:
HERPETOLOGY November 4 th Scrimmage Name: School: Directions: DO NOT open the packet until prompted to. You will have 50 minutes for the test. Please answer each question to the best of your ability. Spelling
More information! Taxonomic Scheme of the 2018 Official Science Olympiad NATIONAL HERPETOLOGY List
DISCLAIMER This presentation was prepared using draft rules. There may be some changes in the final copy of the rules. The rules which will be in your Coaches Manual and Student Manuals will be the official
More informationReading guide for exam 3
Reading guide for exam 3 Chapter 16, 17 Digestive system pp. 532-540, 549, 553, Fig 16-16, 557-569 Not responsible for details on digestive system development beyond Fig. 16-1, although you should know
More informationUnit 19.3: Amphibians
Unit 19.3: Amphibians Lesson Objectives Describe structure and function in amphibians. Outline the reproduction and development of amphibians. Identify the three living amphibian orders. Describe how amphibians
More informationSome important information about the fetus and the newborn puppy
Some important information about the fetus and the newborn puppy Dr. Harmon Rogers Veterinary Teaching Hospital Washington State University Here are a few interesting medical details about fetuses and
More information2. Using an appropriate illustration and words, describe the physics of flight.
1. Besides the obvious, like feathers and wings, birds have many special features that allow them to fly. Explain how each of the characteristics are specialized to help birds fly. A. Skeletal System-
More informationLABORATORY SYLLABUS. Emphasis: Detailed and organismic understanding of the morphology of the shark and cat as models of a fish and a tetrapod.
Syllabus page 1 LABORATORY SYLLABUS Comparative Anatomy, 4 credit hours Actual Lab Sessions: Tu/Th 10:40am-1:30pm Independent studies: Mon/Wed/Fri 9:00am-4:30pm; Tu/Th 1:40pm-4:30pm Laboratory manual:
More informationFly and Cockroach-2A-2
Cockroach-2A-1 Hello, boys and girls. The last time you gathered to learn about insects you were joined by a fly, an insect with whom you are surely familiar. I am also a very common insect that loves
More informationFROG LAB SMITHSONIAN. ITEM #749-08D ITEM # AGES 8 and UP Smithsonian Institution - NSI International, Inc.
SMITHSONIAN ITEM #749-08D ITEM #7492-08 AGES 8 and UP FROG LAB DEAR CUSTOMER, If we made an error and left something out of this set, or if something is damaged, we are sorry and wish to correct our error.
More informationPhylum Chordata. Fish, Amphibians, Reptiles
Phylum Chordata Fish, Amphibians, Reptiles Chordates Three different groups Vertebrates Lancelets Tunicates At some point in their lives, they all have four special body parts Notocord Hollow nerve cord
More information'Rain' of dead birds on central NJ lawns explained; Federal culling program killed up to 5,000 Associated Press, January 27, 2009
'Rain' of dead birds on central NJ lawns explained; Federal culling program killed up to 5,000 Associated Press, January 27, 2009 Study May Give Hope That Ivory-billed Woodpeckers Still Around Science
More informationExamining and Medicating the Ears of Your Cat
Examining and Medicating the Ears of Your Cat Source: Washington State University College of Veterinary Medicine https://www.vetmed.wsu.edu/outreach/pet Health Topics/categories/procedures/cats/examining
More informationBiology 323 Human Anatomy for Biology Majors Lecture 13 Dr. Stuart S. Sumida. Gut Tube: Development, Structure, Function
Biology 323 Human Anatomy for Biology Majors Lecture 13 Dr. Stuart S. Sumida Gut Tube: Development, Structure, Function 1. Implications of Gut Development Foregut Development Midgut Development Hindgut
More informationSEA TURTLE NECROPSY MANUAL FOR BIOLOGISTS IN REMOTE REFUGES
SEA TURTLE NECROPSY MANUAL FOR BIOLOGISTS IN REMOTE REFUGES BY THIERRY M. WORK, DVM U. S. GEOLOGICAL SURVEY NATIONAL WILDLIFE HEALTH CENTER HAWAII FIELD STATION 2000 2 TABLE OF CONTENTS SUBJECT PAGES INTRODUCTION
More informationQuestion 1 Scenario 1 A 20 year old John Doe was found hanging from a pipe attached to the ceiling in his apartment. a. What physical signs would you look for in an autopsy in this victim to prove a death
More informationChapter 27. Diversity. Uniformity in Structure. Adaptations necessary for flight. Fig History. Birds Class Aves
Chapter 27 Birds Class Aves Diversity Over 9000 species have been described worldwide; only fishes have more species among vertebrates. Birds live in all biomes, from mountains to prairies, on all oceans,
More informationSlide 1. Birds & Mammals. Chapter 15
Slide 1 Birds & Mammals Chapter 15 Slide 2 What is a Bird? Vertebrate Endothermic Feathered 4 chambered heart Egg laying Fore-limbs adapted for flight Bones nearly hollow (allow for lighter weight) Slide
More informationNeutering Rabbits. Ness Exotic Wellness Center 1007 Maple Ave Lisle, IL
Neutering Rabbits Ness Exotic Wellness Center 1007 Maple Ave Lisle, IL 60532 630-737-1281 The word "neuter" refers to the removal of the reproductive organs of either a male or a female of a species, although
More information