1. Sponges, Cnidarians, and Arthropods Trivia Marine Biology

2. NEW! EACH GROUP GETS A CLICKER WITH A NUMBER! No groups larger than 3 individuals!! I will still record scores on the board so you can chart progress in the game. In order to check that you know how to use the clickers, answer the following question.

3. PRACTICE QUESTION: NOT COUNTED! This is Nemo. He lives in a sea anemone, which is a type of… A. sponge B. cnidarian C. arthropod

4. 1. What kind of symmetry do Cnidarians have? A. bilateral B. radial C. none aka asymmetry

5. 2. Cephalized animals have a distinct “head” containing many sense structures. A. true B. false

6. 3. Lobsters, crabs, and crayfish belong in ORDER ________________. A. arthropoda B. mandibulata C. crustacea D. decapoda

7. 4. Which animal belongs in Class Meristomata? A. crayfish B. horseshoe crab C. spider crab

8. 5. Which appendages on a crayfish are used for moving? A. maxillipeds B. swimmerets C. antennules D. mandibles

9. 6. What kind of symmetry does a crayfish have? A. bilateral B. radial C. none aka asymmetry

10. 7. Small crustaceans, such as krill, are considered to be… A. herbivores B. carnivores C. scavengers D. filter feeders

11. 8. What is the gender of the Blue Crab in the picture below? A. male B. female

12. 9. What type of animal below is most closely related to a spider? A. lobster B. blue crab C. horseshoe crab D. hermit crab

13. 10. What type of circulatory system do arthropods have? A. open B. closed C. none, they use diffusion

14. 11. What type of reproduction do arthropods use? A. sexual B. asexual C. both sexual and asexual

15. 12. Shrimp and lobsters usually are considered A. filter feeders B. carnivores C. herbivores D. scavengers

16. 13. Sponges are considered to be A. filter feeders B. carnivores C. herbivores D. scavengers

17. 14. What type of reproduction do sponges use? A. sexual B. asexual C. both sexual and asexual

18. 15. This picture shows a cnidarian in the ___________ shape. A. polyp B. medusa

19. 16. What type of symmetry to sponges have? A. bilateral B. radial C. none aka asymmetry

20. 17. The first animals on earth to “invent” the ability to move are A. sponges B. cnidarians C. arthropods

21. 18. How does respiration happen in a cnidarian? A. diffusion B. gills C. book gills D. lungs

22. 19. How does respiration work for a horseshoe crab? A. diffusion B. gills C. book gills D. lungs

23. 20. What type of fertilization do cnidarians use? A. internal B. external

24. 21. What type of reproduction do cnidarians use? A. sexual B. asexual C. both sexual and asexual

25. 22. What type of fertilization do sponges use? A. internal B. external

26. 23. This animal is molting. It’s exoskeleton is made of … A. cellulose B. chitin C. bone

27. 24. Which appendages on arthropods are used for pushing food into the animal’s mouth? A. walking legs B. swimmerets C. maxillipeds D. chelipeds

28. 25. Cnidocytes are specialized cells in sea anemones (and all other cnidarians) that are used for… A. catching food B. protecting themselves from enemies C. moving in the water D. both A and B E. A, B, and C

29. 26. These animals belong in Phylum_____ A. Porifera B. Cnidaria C. Arthropoda

30. 27. This animal belongs in Phylum _________. A. Porifera B. Cnidaria C. Arthropoda

31. 28. This animal belongs in Phylum __________. A. Porifera B. Cnidaria C. Arthopoda