Question
Biology Question on Eco-System
Upper part of sea/aquatic ecosystem contains
A
plankton
B
nekton
C
plankton and nekton
D
benthos.
Answer
plankton
Explanation
Solution
Planktons are passively floating in upper water, nektons are actively swimming while benthos lead sedentary life upon the sea bottom. Planktons are producers and are present in large number.