Lab_04_Worksheet_Key - ephyra medusa 7 Answer the following...

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NAME ________KEY __________ SECTION ______ EFB285 - ZOOLOGY LAB LAB 4 1. What level of organization do sponges have? ___________ cellular ________________ 2. Sponges that reproduce asexually produce _________ gemmules _______ and sponges that reproduce sexually produce ___ larvae (amphiblastula or parenchymula) ___. 3. What level of organization do radiate animals have? _________ tissue ________________ 4. From what does the green Hydra get its color? ___ symbiotic algae called zoochlorellae _ 5. Describe how Hydra captures its prey. _____ Prey grasped by tentacles that are filled with stinging cells called nematocysts ______________ 6. Name the five major life stages in the common jellyfish: ______ planula _____________, _______ scyphistoma _________, ______ strobila _____________, ______
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Unformatted text preview: ephyra ______________, ______ medusa _____________. 7. Answer the following by circling True or False a. Members of phylum Cnidaria have separate mouth and anus. TRUE FALSE b. Both medusae and anemones have a gastrovascular cavity TRUE FALSE 8. Circle the false statement. (There is only one!) a. Polymorphism is present in cnidarians but not ctenophores. b. Nematocysts are absent in ctenophores. c. Unlike cnidarians, ctenophores have colloblasts, comb plates, and an anal opening. d. Cnidarians have radial symmetry and ctenophores do not. 9. (2 points) Label the structures: A ______ dermal ostium _____ B ____ incurrent canal _______ C _____ prosopyle __________ D ______ apopyle __________ A B C D...
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