Most marine animals live near the surface of the ocean because of ________,which supports photosynthesis by marine algae that form the basis of the food chain.
A) sunlight
B) air
C) warmer temperatures
D) thermocline
Correct Answer:
Verified
Q20: The average salinity of seawater is _.
A)0)01%
B)0)27%
C)3)5%
D)19.8%
E)30.0%
Q21: Productivity is the amount of carbon fixed
Q22: Hydrothermal vents provide a unique deep sea
Q23: Organisms that feed through a food web
Q24: What limits productivity in polar regions?
A)low temperatures
Q26: Fish most commonly live _.
A)in the deepest
Q27: Seaweed (large marine algae)grows in shallow coastal
Q28: Organisms,such as algae and bacteria,that drift with
Q29: Animals capable of moving independent of the
Q30: _ organisms live on or in the
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