Download Shape Of Life: Cnidaria

Shape Of Life: Cnidaria
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1. What makes most animals classified differently than plants?
2. Sea Anemone’s were originally classified as ________________.
3. Abraham Trembley made what observation about the so-called plants that he was studying?
4. What did Abraham Trembley do to finalize that the organisms was indeed an animal?
5. What were the cnidarians’ great inventions that became traits to many other animals?
6. Sea Anemones do not have bones. So, how is the sea anemone able to stand and enlarge?
7. Cnidarians have 2 sets of muscles that contract with the aid of _______________ ___________.
8. Cnidarians were the first active ____________
9. What lines each tentacle, and what is its function?
10. What triggers the nematocysts to fire?
11. What happens to the Gobi when it gets too close to the sea anemone?
12. Describe the fight or combat between two sea anemones, from start to finish.
13. Not all cnidarians are enemies. Explain a beneficial cnidarian relationship.
14. What happens the same day and night of each year for coral?
15. Stomphia is a solitude sea anemone. How is Stomphia different that other sea anemones? Explain
what happens with the Sea Star.
16. Measurements of nerve impulse were taken in stomphia to determine movement. Explain the
relationship between the “feeding” impulse and the “moving” impulse.
17. Cnidarians were first group to do what?
18. Cnidarians began with a body plan on the sea floor, sessile. What happened to cnidarians over
time?
19. What feeds on jellyfish?
20. Describe the life cycle of Moon jellies.
21. What do moon jellies feed on when young?
22. Scientists believed that Jellyfish are not designed for easy movement in water. Explain the
experiment and the discoveries the scientist made.
23. Jellyfish thrive at upper ocean levels, are they found in great depths as well?
24. The largest predator in the world is Preya. What does it look like?
25. When startled what happens to Colobonema’s tentacles?
26. Describe the “never seen before” cnidaria found at 8000 feet.