Identify the correct sequence of trophic levels in a food-chain.
(A) Man
(B) Phytoplankton
(C) Fishes
(D) Zooplankton
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → (B), (D), (C), (A)
(B) Phytoplankton — first. They are the producers of water, making food by photosynthesis.
(D) Zooplankton — second. They are the primary consumers, feeding on phytoplankton.
(C) Fishes — third. They are secondary consumers, feeding on zooplankton.
(A) Man — last. Humans eat the fish, at the top of this chain.