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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

In lake ecosystem, phytoplanktons are the primary producers while zooplanktons represents primary consumers. Benthos and fishes occupy higher trophic levels. Since zooplanktons feed on primary producers, they occupy the second trophic level. The correct answer is B.

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NCERT - Standard XII

Stratification in Aquatic Ecosystem

Standard XII Biology

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