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MATCHING Matching.Choose the most appropriate answer for each. a.two pairs of legs per segment b.tiny, flattened, crawling forms c.planarians, flukes, tapeworms d.nematodes e.snails, squids, clams f.wheel animals g.flagellated collar cells present h.jellyfish and corals i.crustaceans, ticks, and insects j. polychaetes, earthworms, leeches k.sea urchins, sea stars -echinoderms

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Classification.Respond to the following statements in reference to the five animal phyla listed below. a.Annelida b.Arthropoda c.Mollusca d.Echinodermata e.Rotifera -"Wheel animals" are in this phylum.

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Explain how insects are both essential for and detrimental to agriculture

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Insects are essential to agriculture as ...

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Classification.Respond to the following statements in reference to the five animal phyla listed below. a.Annelida b.Arthropoda c.Mollusca d.Echinodermata e.Rotifera -Trilobites were members of this phylum.

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All but which of the following are true about cone snail venom?


A) They are potential sources of new drugs of medical interest.
B) They are made by snails inhabiting the South Pacific Ocean.
C) The venom immobilizes the cone snail's prey.
D) They are lethal to cone snail prey.
E) All of these are true.

F) All of the above
G) C) and D)

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___________, such as sea stars, are invertebrate members of the deuterostome lineage.

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MATCHING Matching.Choose the most appropriate answer for each. a.two pairs of legs per segment b.tiny, flattened, crawling forms c.planarians, flukes, tapeworms d.nematodes e.snails, squids, clams f.wheel animals g.flagellated collar cells present h.jellyfish and corals i.crustaceans, ticks, and insects j. polychaetes, earthworms, leeches k.sea urchins, sea stars -cnidarians

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The organs of excretion in flatworms are


A) nephridia.
B) contractile vacuoles.
C) Malpighian tubules.
D) flame cells.
E) book lungs.

F) C) and E)
G) C) and D)

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MATCHING Matching.Choose the most appropriate answer for each. a.two pairs of legs per segment b.tiny, flattened, crawling forms c.planarians, flukes, tapeworms d.nematodes e.snails, squids, clams f.wheel animals g.flagellated collar cells present h.jellyfish and corals i.crustaceans, ticks, and insects j. polychaetes, earthworms, leeches k.sea urchins, sea stars -flatworms

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An animal with bilateral symmetry


A) has left and right sides.
B) usually displays cephalization.
C) produces mirror images regardless of the number of "cuts" through the central axis.
D) has left and right sides and usually displays cephalization.
E) has left and right sides, usually displays cephalization, and produces mirror images regardless of the number of "cuts" through the central axis.

F) None of the above
G) B) and E)

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Which of the following is true of deuterostomes?


A) The first opening into the embryo becomes the anus.
B) The first opening into the embryo becomes the mouth.
C) The second opening into the embryo becomes the anus.
D) The second opening into the embryo becomes the mouth.
E) The first opening into the embryo becomes the anus and the second opening into the embryo becomes the mouth.

F) A) and B)
G) C) and E)

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Classification.Respond to the following statements in reference to the five animal phyla listed below. a.Porifera b.Cnidaria c.Platyhelminthes d.Nematoda e.Annelida -Tapeworms are members of this phylum.

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-Molting in arthropods may involve a change in all but A) body form and maturity. B) sex. C) body size. D) eating habits. E) sensory structures. -Molting in arthropods may involve a change in all but


A) body form and maturity.
B) sex.
C) body size.
D) eating habits.
E) sensory structures.

F) A) and C)
G) A) and B)

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All animals are


A) multicellular, heterotrophic, and diploid.
B) multicellular, heterotrophic, and haploid.
C) multicellular, autotrophic, and diploid.
D) multicellular, autotrophic, and haploid.
E) unicellular, autotrophic, and haploid.

F) A) and B)
G) B) and E)

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