Question

Define, ‘trophic level’.(Delhi - 2011)

Answer 1

Tropic levels are the different levels that form the food pyramid of the ecosystem

Answer 2

Definition of trophic level

• The position of the group of organisms with similar feeding habits in the food chain is called a trophic level.
• The food chain is composed of the following trophic levels:

(i) Producers

(ii) Primary consumers

(iii) Secondary consumers

(iv) Tertiary consumers.

• The producers are the first trophic level members who are fully composed of plants.
• The primary consumers are the second trophic level members which include herbivores.
• The secondary consumers are the third trophic level members composed of carnivores.
• The tertiary consumers are fourth trophic level members composed of omnivores.

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