Question

define: 1) food chain 2) foood web 3) biological magnification

Answer 1

*DEFINATIONS ARE AS FOLLOWS:*

•Food chain: A hierarchical series of organisms each dependent on thee next as a source of food.

•Food Web: A system of interlocking and interdependent food chains.

•Biological magnification: Biomagnification also known as biological magnificationis the increasing concentration of a substance, such as a toxic chemical, in the tissues of tolerant organisms at successively higher levels in a food chain.

Answer 2

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ANS :

1) Food chain : Food chain is defined as the phenomena of transfer of energy through series of organisms falling on successive trophic levels.

2) Food web : When an organism is eaten by two or more other kinds of organisms, instead of straight chain an interlinked chain is formed , termed as Food web.

3) Biological magnification : The accumulation of chemicals in the top organism of the trophic level or food chain is called biological magnification.

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