click below
click below
Normal Size Small Size show me how
zoology notes
Part of the zoology notes for the quiz, what is going to be on there
Question | Answer |
---|---|
Domain | Eukarya |
Kingdom | Animalia |
Phylum | Cnidaria |
Classes | Hydrozoa |
Have Two cell layers with a hollow body called gastrovascular cavity? | Epidermis-outer Gastrodermis- inner |
Single opening to the gastrovascular cavity where food and water enter and waste leave? | Mouth/Anus |
What does it have around the mouth to pull in water and capture food? | Tentacles |
What includes corals, see anemones, and sea fans? | Sessile members |
What do they have as adults? | Radial symmetry |
What is contained called cnidocytes in their tentacles that contain coiled stingers called nematocysts that can shoot out and paralyze prey? | Stinging cells |
What are the two basic body forms? | Polyps and medusa |
How do polyps form? | Are usually sessile with upright tentacles arranged around the mouth at the top and with thin layers of mesolgea. |
How does medusa form? | Are usually free- swimming, bell shaped animals with tentacles that hang down around the mouth and with a thick layer of mesolgea for support. |
What is the sexual stage? | Medusa |
What is the example of Hydrozoa? | Hydra, includes fresh water, sessile hydra (exists only as polyps). |
What is the example of Scyphozoa? | Jellyfish |
What is the example of Anothozoa? | Corals and cemineez |