UPSC Civil Services Prelims 2013
Question 51 of 64Environment and Ecology
With reference to food chains in ecosystems, consider the following statements: 1. A food chain illustrates the order in which a chain of organisms feeds upon each other. 2. Food chains are found within the populations of a species. 3. A food chain illustrates the numbers of each organism which are eaten by others. Which of the statements given above is/are correct?
A1 only
B1 and 2 only
C1, 2 and 3
DNone
Correct Answer
The correct answer is hidden
Explanation
31 words hidden ... trophic levels and species, not merely members within one species population. - Statement 3 is also hidden because ... 28 words hidden