Coral reefs are formed by
A) coral polyps and calcareous algae.
B) shells and worm tubes.
C) volcanic action and subsidence.
D) coral polyps and calcareous algae and shells and worm tubes.
E) coral polyps and calcareous algae, shells and worm tubes, and volcanic action and subsidence.
Correct Answer:
Verified
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A) dinoflagellates living in tropical corals.
B)
Q32: Chemosynthetic communities are found associated with
A) hydrothermal
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