1. Which group of organisms are not constituents of a food chain?
(i) Grass, lion, rabbit, wolf
(ii) Plankton, man, fish, grasshopper
(iii) Wolf, grass, snake, tiger
(iv) Frog, snake, eagle, grass, grasshopper

(a) (i) and (iii)
(b) (iii) and (iv)
(c) (ii) and (iii)
(i) and (iv)

Question

1.	Which group of organisms are not constituents of a food chain?
(i)	Grass, lion, rabbit, wolf
(ii)	Plankton, man, fish, grasshopper
(iii)	Wolf, grass, snake, tiger
(iv)	Frog, snake, eagle, grass, grasshopper

(a)	(i) and (iii)
(b)	(iii) and (iv)
(c)	(ii) and (iii)
(i) and (iv)

MyClass24 · Accepted Answer

Soln:

Answer is (c) (ii) and (iii)
Explanation:
In option ii) plankton does not eat grass. In option iii) none of them eat grass hence option c) is the right answer.

1. Which group of organisms are not constituents of a food chain? (i) Grass, lion, rabbit, wolf (ii) Plankton, man, fish, grasshopper (iii) Wolf, grass, snake, tiger (iv) Frog, snake, eagle, grass, grasshopper (a) (i) and (iii) (b) (iii) and (iv) (c) (ii) and (iii) (i) and (iv)