Question

Which group of organisms are not constituents of a food chain?

Grass, lion, rabbit, wolf
Plankton, man, fish, grasshopper
Wolf, grass, snake, tiger
Frog, snake, eagle, grass, grasshopper


Select the correct option:

(i) and (iii)
(iii) and (iv)
(ii) and (iii)
(i) and (iv)

Answer 1

Answer:

The correct option is C.

Explanation:

✒️ The flow of energy from one organism to another taking part at various biotic levels forms a food chain. A food chain describes the feeding relationships between the organisms within that ecosystem.

✒️ Food chain (ii) is an aquatic food chain so grasshopper cannot be a part of it.

✒️ In food chain (iii), wolf, snake and tiger all are carnivores. There is no herbivore to eat grass or herbivore is missing from the chain.

Answer 2

Answer:

correct answer is option C.