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In general, a food chain consists of how many trophic levels?

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in Biology – Class 12 by (271k points)
In general, a food chain consists of how many trophic levels?

(a) Four

(b) Zero

(c) Two

(d) One

I have been asked this question in a national level competition.

The doubt is from Ecosystem topic in division Ecosystem of Biology – Class 12

1 Answer

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Right answer is (a) Four

To explain I would say: In general a food chain consists of 3-4 trophic levels. Plants consists represent the first level, herbivores are in second. The carnivores and top carnivores come under the third and fourth trophic levels respectively.

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