Q. Consider the following statements regarding “food chains”:
1.In grazing food chain, the primary source of energy is living plants.
2.In detritus food chain the source of energy is dead organic matter.
Which of the statements given above is/are correct?
Answer: C
Notes:
Explanation: In the grazing food chain, the primary source of energy is living plant biomass while in the detritus food chain the source of energy is dead organic matter or detritus.
The two food chains are linked. The initial energy source for detritus food chain is the waste materials and dead organic matter from the grazing food chain.
Source: Shankar IAS
