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Ecosystems — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYEcosystems2 Marks
Question
Name any two organisms which can occupy more than one trophic level in an ecosystem.
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Answer

Sparrow: It is a primary consumer when it feeds on grans but becomes a secondary consumer when it feeds on worms and insects.
Human: It is a primary consumer when it feeds on grains and pulses but becomes a secondary consumer when it feeds on lamb.

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