Sponges, Cnidarians, and Arthropods Trivia Marine Biology

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.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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