Animal Diversity Midterm & Key B Sum10

Animal Diversity Midterm & Key B Sum10 - BSC 2011-L -...

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BSC 2011-L - Animal Diversity Midterm Lecture Exam – Form B Summer 2010 Name, please: _____________________________ Please select the single best choice to answer each of the following questions. 1. In the figure below, the coelom is indicated by letter _____. A. A B. B C. C D. D E. E 2. The early animal embryo in the figure above could possibly belong to _____. A. a flatworm B. a jellyfish C. a fluke D. an annelid E. a nematode Please use the life cycle diagram below to answer the following THREE questions. 3. Sexual reproduction occurs during the phase represented by letter ____. A. A B. B C. C D. D (no choice “E”) 4. The structure indicated by letter “B” is a(n) _____. A. miracidium B. sporocyst C. planula D. zooid E. redia 5. The life cycle above is characteristic of _____. A. anthozoans B. hydrozoans C. scyphzoans D. cubozoan E. staurozoans B A C D
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6. A rhynchocoel houses ____ in _____. A. a proboscis; nemerteans B. a proboscis; nematomorphs C. a zooid; ectoprocts D. flame cells; flatworms E. a proboscis; acanthocephalans 7. Which of the following parasites enter their human host as juveniles that burrow through the host’s skin? A. hookworms B. pinworms C. intestinal roundworms D. filarial worms E. trichina worms 8. The dorsal side of an animal refers to ____. A. its back B. its front or belly C. its anterior region D. its posterior region (no choice “E”) 9. A hemocoel is the predominant body cavity in a(n) _____. A. annelid B. nemertean C. gastrotrich D. cnidarian E. arthropod 10. An outer epidermis, inner gastrodermis, and middle layer of mesoglea. A. Annelida B. Porifera C. Ectoprocta D. Cnidaria E. Onycophora 11. Shrimp, lobsters, crabs, and crayfish are members of which crustacean class? A. Pentastomida B. Branchiopoda C. Malacostraca D. Remipedia E. Copepoda 12. Longitudinal muscles only, complete gut, hypodermal cords, excretory canals. A. Turbellaria B. Brachiopoda C. Phoronida D. Nemertea E. Nematoda 13. Members of the phylum ____ are capable of cryptobiosis by forming a ____. A. Onycophora; gemmule B. Tardigrada; tun C. Rotifera; tun D. Gastrotricha; gemmule E. Nematoda; cycticercus 14. Cestodes differ from other members of their phylum by lacking ____. A. sex organs B. a gut C. true tissues D. true organs E. a coelom 15. A natural “bath sponge” has the ____ form and belongs to the Class ____ . A. asconoid; Hexactinellida B. syconoid; Calcarea C. asconoid; Ascoidea D. leuconopid; Leuconoidea E. leuconoid; Demospongiae 16. A rostellum, scolex, and proglottids are characteristics of ____. A. parasitic roundworms
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Animal Diversity Midterm & Key B Sum10 - BSC 2011-L -...

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