Water must be warmer than ________ degrees Centigrade to support a reef of corals with zooxanthellae.
A) 15
B) 18
C) 23
D) 25
E) 30
Correct Answer:
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Q23: An individual coral animal is known as
Q24: Which organisms burrow into the deep-ocean muds
Q24: The first trophic level in a hydrothermal
Q28: Coral bleaching results in _.
A) the expulsion
Q31: Zooxanthellae are
A) dinoflagellates living in tropical corals.
B)
Q31: Coral reefs are formed by _.
A) coral
Q34: Marine algae are found in which sequence
Q35: Most animals that live within the sand
Q39: Intertidal communities have low productivity because of
Q40: Seafloor organisms modify their habitat and create
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