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Q. 1. What are trophic levels? Give an example of a food chain and state the different trophic levels in it.
Answers (1)
Each step or level of the food chain is known as a trophic level. Transfer of energy in the form of food takes place from one trophic level to the next.
Trophic levels can be broadly classified as Producers; Primary, Secondary and Tertiary Consumers.
An example of a food chain:
Grass Grasshopper
Frog
Snake
Eagle
Here, Grass is a producer, Grasshopper is herbivore, Frog is first carnivore, Snake is second carnivore and Eagle at the top is third carnivore.
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