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Consider the following statements conern...

Consider the following statements conerning food chains
(i) Removal of 80% tigers from an area resulted in greatly increased growth of vegetation
(ii) Removal of most of the carnivores resulted in an increased population of deers
(iii) The length of food chains is generally limited to 3 - 4 trophic levels due to energy loss
(iv) The length of food chains may vary from 2 to 8 trophic levels
Which two of the above statements are correct?

A

I and II

B

II and III

C

III and IV

D

I and IV

Text Solution

Verified by Experts

The correct Answer is:
A
Statements II are III are correct. A simple food chain consits of producers, herbivores and carnivores. The length of food chain is generally limited to 3-4 trophic levels due to the energy loss. In grazing food chain the producers (i.e. plants) are eaten by herbivores (i.e rabbit, deer, cow, etc) and theherbivores are eaten by carnivores therfore, the removal of most of the carnivores. resulted in an increased population of deers.
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