Concept of Ecosystems

Environment and Ecology

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With reference to food chains in ecosystems, consider the following statements:

1. A food chains illustrates the order in which a chain of organisms feed upon each other.

2. Food chains are found within the populations of a species.

3. A food chain illustrates the numbers of each organism which are eaten by others.

Which of the statements given above is/are correct?

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UPSC CSP Previous Year Paper (2013)

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1 only

1 and 2 only

1, 2 and 3

None

Explanation:

A food chain illustrates the order in which a chain of organisms feed upon each other. Food chainsare found within the populations of different species. A food chain does not illustrate the numbers of each organisms which are eaten by others.

By: Abhipedia

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