What planktonic group accounts for 80% of all photosynthesis in the tropics?
a. Picoplankton
b. Nanoplankton
c. Microplankton
d. Mesoplankton
ANS: A
Picoplankton are successful in areas where surface nutrients are low. This is why they are abundant in
tropical waters. Information can be found in the section Phytoplankton are Autotrophs.
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Why is consumption so important internationally?
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