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Stratification in Aquatic Ecosystem

The second tr...

Question

The second trophic level in a lake is-

(a) Phytoplankton

(b) Zooplankton

(c) Benthos

(d) Fishes

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Solution

(b) Zooplankton

Zooplankton are primary consumers in aquatic food chains that feed upon phytoplankton. Therefore, they are present at the second trophic level in a lake.

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Stratification in Aquatic Ecosystem

Standard XII Biology

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