The major difference between shallow reef-building corals and their deep, cold-water coral cousins is:

The major difference between shallow reef-building corals and their deep, cold-water coral cousins is:

(A) the lack of zooxanthellae in the deep water corals.

(B) the presence of chemosynthetic bacteria in the mesoglea of deep water corals. (C) deep water corals grow more quickly, and the colonies have short life spans. (D)the zooxanthellae in deep water corals are colorless and hence the corals appear white. (E)shallow corals have six-fold symmetry, deep water corals have eight-fold symmetry.

Corals which contain zooxanthellea are termed ________ corals

a. Aposymbiotic

b. Algivorous

c. Xanthophilic

d. Hermatypic

25. Zooxanthellae-coral polyp relationship

26. Importance of light and calcification for corals

27. Roles of micro and macroalgae in coral reefs

28. Balance between nutrients, grazers and competition on reef algae

29. Coral reef stresses and problems with coral reef management

30. Biomagnification/bioaccumulation effects

How are chemosynthetic bacteria different from photosynthetic bacteria?

◯ A. Chemosynthetic bacteria do not need light.

◯ B. Chemosynthetic bacteria require intense sunlight.

◯ C. Chemosynthetic bacteria eat tube worms.

◯ D. Chemosynthetic bacteria do not require water.