Arrange the following trophic levels of the terrestrial ecosystem in correct order?

(A) Tertiary consumers

(B) Secondary consumers

(C) Producers

(D) Primary consumers

Choose the correct answer from the options given below:

(C), (D), (B), (A)

The correct answer is Option (4) → (C), (D), (B), (A)

The correct order of trophic levels in a terrestrial ecosystem, starting from the base of the food chain, is:  (C) Producers → (D) Primary consumers → (B) Secondary consumers → (A) Tertiary consumers

Explanation:

Producers (C) – These are typically green plants that produce energy through photosynthesis. They form the base of the food chain.

Primary consumers (D) – These are herbivores that eat producers. Examples include deer, rabbits etc.

Secondary consumers (B) – These are carnivores or omnivores that eat primary consumers. Examples include foxes or birds that eat insects.

Tertiary consumers (A) – These are top predators that eat secondary consumers. Examples include hawks or lions.

So, the correct sequence is: C → D → B → A