A food web _________________________.

Increases the variety of food at each trophic level

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Keeps a balance between organisms

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Decreases the variety of food but increases the quantity of food at each trophic level

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Increases the variety as well as the quantity of food at each trophic level

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Solution

The correct option is C Keeps a balance between organisms
The network of food chains that are interconnected to each other is called the food web. In a food chain, each member is eaten by the other in the sequence. In a food chain, if one organism (primary consumer) gets extinct, then the other organism depending on the primary consumer, will die too. This is not the case with the food web. The food web consists of many interlinked food chains. So, if one organism is extinct, then the consumer of that organism has other options to feed upon.
Thus, the correct answer is option B.

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Similar questions

Q. The accumulation of non-biodegradable substances in a food chain in increasing amount at each higher trophic level is known as _____________.

Question 9
Organisms of a higher trophic level which feed on several types of organisms belonging to a lower trophic level constitute the

(a) food web
(b) ecological pyramid
(c) ecosystem
(d) food chain

Q. Assertion [A]: Food webs are formed because of complex feeding relationships among organisms.

Reason [R]: Most organisms feed at one or more trophic levels in a food chain.

Question 13
Which of the following limits the number of trophic levels in a food chain?

(a) Decrease in energy at higher trophic levels
(b) Sufficient food supply
(c) Polluted air
(d) Water

Q. In a grazing food chain, grass is at trophic level.

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