Why do corals need a mutualistic relationship with other species,like zooxanthellae?
A) Corals typically live in nutrient-poor regions.
B) Corals grow on top of one another
C) Corals live in cold water.
D) Corals live so deep that the sunlight cannot reach them.
E) Corals live in oxygen-poor water.
Correct Answer:
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Q30: Where would you find the highest concentration
Q31: Coral is a type of marine _.
A)plant
B)fungi
C)bacterium
D)animal
E)protozoan
Q32: Which statement about coral reefs is FALSE?
A)Overfishing
Q33: What event can lead to coral bleaching?
A)pollution
B)acidification
C)high
Q34: You would expect to find barnacles,starfish,and mussels
Q36: The skeleton of coral is mostly composed
Q37: It is estimated that _ of all
Q38: Why is depth such an important factor
Q39: Coral reefs are complex ecosystems with numerous
Q40: All of the following are major threats
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