Ecosystem Ques 62
62. Consider the following statements concerning food chains
[2008]
(1) removal of 80% tigers from an area resulted in greatly increased growth of vegetation
(2) removal of most of the carnivores resulted in an increased population of deers
(3) the length of food chains is generally limited to 3-4 trophic levels due to energy loss
(4) the length of food chains may vary from 2 to 8 trophic levels
Which two of the above statements are correct?
(a) (2) and (3)
(b) (3) and (4)
(c) (1) and (4)
(d) (1) and (2)
Show Answer
Answer : a
Hints & Solutions
(a) Food chain is the transfer of energy from green plants (primary producers) through a sequence of organisms. The position of an organism in a food chain is known as its trophic level. Therefore, statements $b$ and $c$ are correct.
BETA
