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Question
What is the first trophic level in a lake ecosystem?
What is the first trophic level in a lake ecosystem?
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Solution
The correct option is D Phytoplankton
The first trophic level in any ecosystem is formed by producers. In an aquatic ecosystem like a lake phytoplankton are the producers and hence form the first trophic level. Zooplankton form the second trophic level. Plankton is a common term for all microscopic organisms in the aquatic ecosystem. Benthos or benthic orgnisms lie at the bottom of the lake or water body.
Phytoplankton
The first trophic level in any ecosystem is formed by producers. In an aquatic ecosystem like a lake phytoplankton are the producers and hence form the first trophic level. Zooplankton form the second trophic level. Plankton is a common term for all microscopic organisms in the aquatic ecosystem. Benthos or benthic orgnisms lie at the bottom of the lake or water body.
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