QUESTION

Easy

Environment & Ecology

Prelims 2013

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

  1. A food chain illustrates the order in which a chain of organisms feeds 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?

Select an option to attempt

Explanation

Food chain, in ecology, is the sequence of transfers of matter and energy in the form of food from organism to organism.

  • Food chains are not found within the populations of a species, because technically, the food chain is the sequence of organisms through which the energy flows.

  • Food chains intertwine locally into a food web because most organisms consume more than one type of animal or plant.

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