Unit 12 Review Page 1

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1 Unit 12 Review Page 1 1 is the concentration of sense organs and nerve cells in the front of the bodies of worms, mollusks, arthropods, echinoderms, and chordates. ephalization Segmentation Tagmatization Radial symmetry ilateral symmetry 2 Pseudocoelomate animals have bodies that lack true tissues. lack a body cavity. have an incomplete digestive tract. have a body cavity not fully lined with mesoderm. lack the ability to contract their longitudinal muscles. 3 Which of the following list of animals groups include organisms that lack a body cavity? sponges, cnidarians, flatworms roundworms, mollusks, chordates segmented worms, chordates, flatworms arthropods, echinoderms, segmented worms echinoderms, segmented worms, roundworms 4 nimals in which the mouth is derived from the first opening (the "blastopore") in embryonic development are called diploblasts triploblasts protostomes deuterostomes pseudocoelomates 5 Picture a phylogenetic tree of the animal kingdom. What is the name of the clade that includes LL members of the animal kingdom? Radiata ilateria Metazoa umetazoa euterostomia 6 Which of the following characteristics applies to LL animals, including sponges? multicellular bodies asexual reproduction triploblastic body plan rapid and complex movement organ-system level of organization

2 Unit 12 Review Page 2 7 Which of the following characteristics makes sponges different from most other animals? Sponges have collagen. Sponges have a skeleton. Sponges are multicellular. Sponges lack true tissues. Sponges are heterotrophic. 8 What is the name for the type of stinging cell used by cnidarians to paralyze their prey? cnidocytes choanocytes ameobacytes eurythrocytes chromatocytes 9 The phylum nidaria includes jellies. corals. anemones. box jellies. all of the above 10 Which of the following characteristics is shared by flatworms, roundworms, and segmented worms? metamerism a body cavity a complete digestive tract a closed circulatory system three layers of tissue during embryological development 11 Which of the following structures is unique to the phylum Mollusca? radula pharynx intestine gastrovascular cavity water vascular system 12 dult echinoderms exhibit symmetry, but their larvae exhibit symmetry. radial, biradial bilateral, biradial biradial, pentaradial pentaradial, bilateral biradial; pentalateral

3 Unit 12 Review Page 3 13 Which of the following characteristics is unique to the members of the phylum chinodermata? They are heterotrophic. They are deuterostomes. They are made up of multiple cells. They have a water vascular system. They have a complete digestive system. 14 Which group includes animals with cartilaginous skeletons? Reptilia mphibia Mammalia Osteichthyes hondrichthyes 15 What group of animals are capable of using their skin as their primary respiratory structure? birds reptiles mammals amphibians cartilaginous fish 16 What sets reptilian eggs apart from amphibian eggs? Reptilian eggs must develop in water. Reptilian eggs contain multiple embryos. Reptilian eggs always hatch inside the mother. Reptilian eggs are surrounded by a protective shell that prevents drying out on land. Reptilian eggs are composed primarily of haploid cells, even after fertilization has occurred. 17 Reptiles, birds, and mammals all possess a structure called "amnion." What is it? a special type of claw a membrane surrounding the developing embryo a series of air filled sacs that distribute oxygen to the tissues a structure giving them the ability to use the ribcage to ventilate their lungs a section of their digestive tract housing symbiotic bacteria that help digest cellulose

4 Unit 12 Review Page 4 18 The common ancestor of reptiles, birds, and mammals adapted to living outside of the water by producing eggs with protective membranes, by breathing with lungs, and by developing a tail. a brain. four limbs. a four chambered heart. skin that was impermeable to water. 19 irds have specific weight-reducing adaptations that accompanied the evolution of flight. They include all of the following XPT: endothermy. loss of teeth. only one ovary. lightweight bones. air sacs extending into tissues. 20 Which of the following characteristics is unique to the members of the class Mammalia? hair diaphragm mammary glands three inner ear bones all of the above

5 Unit 12 Review Page 5 nswer Key : Unit 12 Review Question: nswer