Question

what is food chain (3marks)

Answer 1

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the interdependence of plants and animals on each other for their food and survival is called as a food chain.

e.x. - grass -> deer -> lion.

here, grass is eaten by deer and deer is eaten by lion. we see that there is a interdependence of the animals on each other for food so, there is a food chain...

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Answer 2

A food chain is a pathway that represents the exchange of energy from one organism to another. In other words, it is the chronological order of who eats whom in a biological community. Food chains go hand-in-hand with food webs, though there are differences between the two. While a food chain is a single pathway of energy transfer, a food web shows all of the different relationships or possible energy transfers between a selected group of species...
ex... sun>grass>grasshopper>rat>snake>eagle...

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