Chap 30 Protosomes

Chap 30 Protosomes - Name: _ Class: _ Date: _ Chap 30...

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Name: ________________________ Class: ___________________ Date: __________ ID: A 1 Chap 30 Protosomes Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. The protostome coelomates are divided into two major groups, the: a. flatworms and roundworms. b. Lophotrochozoa and Ecdysozoa. c. Mollusca and Arthropoda. d. invertebrates and vertebrates e. Chelicerata and Mandibulata. ____ 2. Which of the following is not linked to the development of the coelom? a. a hydrostatic skeleton. b. protection of internal organs. c. transport of food and wastes. d. the pumping action of the heart. e. None of these. ____ 3. How can Lophotrochozoa be distinguished from Ecdysozoa? a. The Lophotrochozoa include at least one worm phylum, but none of the Ecdysozoa are worms. b. The Lophotrochozoa live in marine environments and the Ecdysozoa are terrestrial. c. Annelids are in the group Lophotrochozoa and arthropods are in the group Ecdysozoa. d. Roundworms are in the group Lophotrochozoa and flatworms are in the group Ecdysozoa. e. The Lophotrochozoa are terrestrial and the Ecdysozoa are aquatic. ____ 4. A coelom provides several benefits, including: a. a hydrostatic skeleton. b. transport of materials. c. independent movement of the digestive system and the body wall. d. a space for internal organs. e. All of these. ____ 5. Which statement best describes a lophophore? a. It is a ciliated ring of tentacles surrounding the mouth. b. It is a larval stage found in the Lophotrochozoa and the Ecdysozoa. c. It is a structure used for locomotion in the Lophophorata. d. It is the opening also referred to as the anus in the Ecdysozoa. e. It is one of the openings to the excretory system of phylum Platyhelminthes. ____ 6. Without having either a pseudocoelom or a coelom: a. animals would not have developed systems. b. animals would not have developed three tissue layers. c. animals would not have evolved to live on land. d. animals would have limited mobility on land. e. animals would not exhibit cephalization.
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Name: ________________________ ID: A 2 ____ 7. The trend toward cephalization is first seen in the: a. scyphozoans. b. poriferans. c. platyhelminthes. d. nematodes. e. nemerteans. ____ 8. Like the cnidarians, flatworms depend on __________ for achieving circulation and gas exchange. a. blood b. hemolymph c. diffusion d. hearts e. lungs Figure 30-1 Use the figure to answer the corresponding question(s). ____ 9. Refer to Figure 30-1. Which structure is responsible for circulation in this animal? a. 1 b. 4 c. 5 d. 6 e. None of these.
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Name: ________________________ ID: A 3 ____ 10. Refer to Figure 30-1. Which structure would have arisen from endoderm? a.
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Chap 30 Protosomes - Name: _ Class: _ Date: _ Chap 30...

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