2. Porifera & Cnidaria Jeopardy 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 Porifera Labeling Porifera GeneralCnidaria General Cnidaria Labeling Misc Final Jeopardy

3. What type of sponge is drawn on the left side of the picture 2

4. Asconoid 3

5. 4 What type of cell is denoted by the label XXX?

6. 5 Choanocyte

7. 6 What type of cell is denoted by the label XXX?

8. 7 Sclerocyte

9. 8 What type of cell is denoted by the label XXX?

10. 9 Archaeocyte

11. 10 What is the proper name for the large middle chamber of sponges?

12. 11 Atrium

13. 12 Sponges are all aquatic and mostly marine. What does this statement mean?

14. 13 They all live underwater but most live in salt water

15. 14 Define sessile

16. 15 Attached to the substrate or immobile

17. 16 Of what three substances are spicules comprised?

18. 17 Silicon, calcium carbonate, & collagen

19. Which class of sponge is includes the soft bath sponges? 18

20. 19 Demospongiae

21. What class of sponge includes the glass sponges? 20

22. 21 Hexactinellida

23. 22 What two body plans do all Cnidarians go through during their life cycle?

24. 23 Polyp & Medusa

25. 24 What are the 2 living layers and 1 non-living layer that make up Cnidarian bodies?

26. 25 Epidermis, Gastrodermis, & Mesoglea

27. 26 Which Cnidarian class includes the true jellyfish?

28. 27 Scyphozoa

29. 28 Which Cnidarian class includes anemones and coral?

30. 29 Anthozoa

31. 30 Describe the relationship between zooxanthellae and coral

32. 31 It is a mutualistic relationship. The zooxanthellae provide the coral with food while the coral provides the zooxanthellae with a home.

33. 32 What structure is denoted by the number 7?

34. 33 Mesoglea

35. 34 What structure is denoted by the number 10?

36. 35 Gastrovascular cavity

37. 36 What structure is denoted by the number 1?

38. 37 Cnidocyte

39. 38 What structure is denoted by the number 5?

40. 39 Nematocysts

41. 40 Someone come to the board and draw the generalized lifecycle of a Cnidarian

42. 41

43. 42 Obelia contains two types of polyps. Explain.

44. 37 The feeder polyps capture and digest prey whereas the reproductive polyps bud out medusa

45. 44 Name two similarities and two differences between Phylum Cnidaria and Phylum Ctenophora

46. 45 Similar – radial symmetry, diploblastic, & dead-end digestive tract Different – no cnidocytes or polyp/medusa stages

47. 46 Name two differences between true jellyfish and box jellyfish other than the potency of their venom

48. 47 True Jellyfish – round velum, no eyes (rhopalia), & tentacles all around the velum Box Jellyfish – square velum, eyes (rhopalia), and tentacles only arising from the four corners of the velum

49. 48 Which class of sponge has spicules that dissolve away when vinegar is dropped on a slide?

50. 49 Calcarea

51. 50 Describe the relationship between choanocytes and archaeocytes

52. 51 Choanocytes capture food from the water and transfer that food to the archaeocytes. Archaeocytes then digest that food and pass the energy to the other cells in the sponge.

53. 52 What are the two hypotheses of multicellularity

54. 53 Pasteurization