1. Which of the following is the most simple of the given marine animals?
a. coral c. sea anemone
b. jellyfish d. sponge

2. Which of the following is not a characteristic of a Cnidarian?
a. have stinging cells c. have complex nervous system
b. have development of tissues d. are radially symmetical

3. Which Cnidarian class form colonies with specilized polyps?
a. Anthozoa c. Scyphozoa
b. Hydrozoa d. Ctenophora

4. Which Cnidarian class has organisms in the polyp stage only?
a. Anthozoa c. Scyphozoa
b. Hydrozoa d. Ctenophora

5. Which is not a requirement for Coral Reef growth?
a. warm water c. pollution
b. light d. stable salinity levels

6. Jellyfish have a limited swimming ability, so they are known as...
a. benthic c. nektonic
b. sessile d. freeloaders

7. Which type of coral reef is the most common?
a. atoll c. fringing
b. barrier d. none of these

8. Which type of coral reef forms due to a volcano sinking?
a. atoll c. fringing
b. barrier d. none of these

9. Porifera actually means _________________________ which makes sense because sponges have many that are called _________________

10. The cells that line the canals of the sponge are called _____________________________

11. The 2 components that can make up a sponge’s skeleton are _____________________ and _______________________

12. The scientific name for the stinging cells on jellyfish is ___________________________.

13. Coral secrete their skeletons made of ______________________________

14. Example of an Anthozoa a. bath sponge e. portuguese man-of-war
b. coral f. glass sponge
c. comb jellies g. spicules made of CaCO3
d. true jellies
Example of an Anthozoa

15. Example of a Ctenophora
a. bath sponge e. portuguese man-of-war
b. coral f. glass sponge
c. comb jellies g. spicules made of CaCO3
d. true jellies
Example of a Ctenophora

16. Example of Hydrozoa a. bath sponge e. portuguese man-of-war
b. coral f. glass sponge
c. comb jellies g. spicules made of CaCO3
d. true jellies
Example of Hydrozoa

17. Example of an Hexactinellida
a. bath sponge e. portuguese man-of-war
b. coral f. glass sponge
c. comb jellies g. spicules made of CaCO3
d. true jellies
Example of an Hexactinellida

18. Example of a Scyphozoa a. bath sponge e. portuguese man-of-war
b. coral f. glass sponge
c. comb jellies g. spicules made of CaCO3
d. true jellies
Example of a Scyphozoa

19. Example of a Calcarea a. bath sponge e. portuguese man-of-war
b. coral f. glass sponge
c. comb jellies g. spicules made of CaCO3
d. true jellies
Example of a Calcarea

20. Example of a Demospongiae
a. bath sponge e. portuguese man-of-war
b. coral f. glass sponge
c. comb jellies g. spicules made of CaCO3
d. true jellies
Example of a Demospongiae

21. Ascon Body Plan

22. Leucon Body Plan

23. Sycon Body Plan

24. What are the 2 purposes that the collar cells serve?

25. Explain in detail the reproduction process of a sponge
Explain in detail the reproduction process of a sponge. (feel free to draw a picture of it in any space available to help you)

26. What type of symmetry is a sea anemone? And what does that mean?

27. The sea anemone is both benthic and sessile
The sea anemone is both benthic and sessile. What does each mean as a characteristic of the sea anemone?

28. Jellyfish have stinging cells to help them catch prey
Jellyfish have stinging cells to help them catch prey. What are the stinging cells called? What are the stingers on the cell called? And what do these cells do to help them catch their prey?

29. Explain zooanthellae symbiosis

30. Based on the information you provided about the symbiotic relationship, describe any additional information this tells you about coral.

31. What would be some dangers to the coral reef?