Question

Match the trophic levels with their correct examples in pond ecosystem.

(a)	Fourth trophic level	(i)	Phytoplankton
(b)	Second trophic level	(ii)	Small fishes
(c)	First trophic level	(iii)	Zooplankton
(d)	Third trophic level	(iv)	Large fishes

• A. (a) (b) (c) (d)
  (iii) (iv) (i) (ii)
• B. (a) (b) (c) (d)
  (iv) (iii) (ii) (i)
• C. (a) (b) (c) (d)
  (iv) (iii) (i) (ii)
• D. (a) (b) (c) (d)
  (iv) (i) (ii) (iii)

Answer 1

The correct option is C (a) (b) (c) (d)

(iv) (iii) (i) (ii)
Phytoplanktons are producers, large fishes are top carnivores. Zooplanktons feed on phytoplanktons.