Question

Complete the following food chain. 1) Grass, --------,Grasshopper, Frog, ------, Eagle. 2) --------, Deer, ----------.

Answer 1

Answer:

1) Grass, grasshopper, frog, snake, eagle

2) Grass, deer, lion

Answer 2

Answer:

1) grass → Insects (grasshopper) → frog → Snake → Eagle

2) Grass → Deer → Tiger

Explanation:

• The transfer of food or chemical energy from the producer, through a series of organisms i.e. from herbivores to carnivores- consumers with repeated cycles of eating and being eaten, constitutes a food chain.

• Each level of the food chain is represented as a trophic level.

• A food chain may end at any trophic level but it never exceeds 4 or 5 successive trophic levels.

1) grass → Insects (grasshopper) → frog → Snake → Eagle

• This portrays a grazing or predator food chain that extends from producer to carnivores.

• Here Grass is the producer, the grasshopper occupies the primary consumer level as a herbivore, the frog is the secondary consumer (carnivore), the snake is the tertiary consumer (carnivore) and Eagle is the top consumer (carnivore).

Similarly in 2) Grass → Deer → Tiger,

• Grass occupies the producer upon which the herbivore-deer depends and upon the herbivore, the tiger depends on occupying the consumer level as a carnivore.

Hence the correct order for the food chain is

1) grass → Insects (grasshopper) → frog → Snake → Eagle

2) Grass → Deer → Tiger