Upper part of sea/aquatic ecosystem contains
Correct answer: A. Plankton
- A. Plankton
- B. Nekton
- C. Plankton and Nekton
- D. Benthos
Explanation
Planktons are passively floating in upper water, nektons are actively swimming and benthos lead sedentary life upon the sea bottom. Planktons are producers and are present in large numbers.
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