Observe the diagram and answer the question given below:
Which among the following is not a primary consumer?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Snake
A primary consumer feeds directly on producers (plants or phytoplankton): it is a herbivore.
Option (1) Snake — Not a primary consumer. A snake eats animals such as frogs and rats, so it is a secondary or higher consumer.
Option (2) Grasshopper — A primary consumer. It eats grass and leaves.
Option (3) Zooplankton — A primary consumer. In water, zooplankton feed on phytoplankton.
Option (4) Caterpillar — A primary consumer. It feeds on leaves, as in the figure.