A simple example of a linear food chain is:

A. Grass
B. Snake
C. Insects
D. Hawk
E. Frogs

Choose the correct answer from the options given below:

Correct option is B

1. Grass (A) → Producer 

   • Plants like grass are autotrophs that produce their own food using sunlight.

2. Insects (C) → Primary Consumer (Herbivore) 

   • Insects feed on grass and other plants.

3. Frogs (E) → Secondary Consumer (Carnivore) 

   • Frogs eat insects.

4. Snake (B) → Tertiary Consumer (Carnivore) 

   • Snakes eat frogs.

5. Hawk (D) → Apex Predator 

   • Hawks prey on snakes, completing the food chain.

Thus, the correct linear food chain is:
Grass (A) → Insects (C) → Frogs (E) → Snakes (B) → Hawks (D) 

1. Producers: Plants (e.g., Grass).
2. Primary Consumers: Herbivores (e.g., Insects).
3. Secondary Consumers: Carnivores that eat herbivores (e.g., Frogs).
4. Tertiary Consumers: Carnivores that eat secondary consumers (e.g., Snakes).
5. Apex Predators: Top predators with no natural enemies (e.g., Hawks).