The first trophic level in a hydrothermal vent community is
A) seriously polluted.
B) dependent on bacteria and their ability to use hydrogen sulfide.
C) dependent on organic material drifting down from the surface.
D) provided by larvae drifting in deep-sea currents.
E) made up of clams and tube worms.
Correct Answer:
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Q19: Coral bleaching is produced by the invasion
Q20: Few algae are found growing on gravel
Q21: Coral bleaching results in
A) the expulsion of
Q22: Animals and algae living attached to the
Q23: Intertidal zonation on a rocky beach is
Q25: Water must be warmer than _ to
Q26: Which organisms burrow into the deep-ocean muds
Q27: Coral reefs are formed by
A) coral polyps
Q28: The benthic zone is considered the seafloor
Q29: Blades are the photosynthetic organ of seaweed.
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