Question

In a food chain of frog, grass, insect and snake, assign trophic level to frog.

Answer 1

Food chain:

• The food chain consists of a linear sequence of trophic levels.
• There is a unidirectional flow of energy.
• The producers are autotrophs (grass) present at the bottom (Trophic level 1 or T1).

Trophic levels:

• Plants are consumed by the primary consumer (Trophic level 2 or T2), which is an insect here.
• The insect is consumed by the frog (Trophic level 3 or T3) and is a secondary consumer.
• The frog is consumed by the snake (Trophic level 4 or T4) and is a tertiary consumer.
• The food chain of the given organisms can be depicted as follows:

Grass→insect→frog→snake

T1→T2→T3→T4