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What are trophic levels? Give an example...

What are trophic levels? Give an example of a food chain and state the different trophic levels in it.

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Successive levels of nourishment in the food chain are known as trophic levels.
It shows transfer of energy in an ecosystem.
Food chain is a sequential list of prey-predator relationship.
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Knowledge Check

  • The second trophic level in a lake is

    A
    Phytoplankton
    B
    Zooplankton
    C
    Benthos
    D
    Fishes

  • Trophic levels are formed by

    A
    only plants
    B
    only animals
    C
    only carnivores
    D
    organisms linked in food chains

  • Which of the following statements about food chains are correct? (A) Removal of 80% tigers resulted in increases growth of vegetation. (B) Removal of most carnivores results in increased population of deer. (C) Length of food chains is limited to 3-4 trophic levels due to energy loss. (D) Length of food chain may vary from 2-3 trophic levels.

    A
    A, D
    B
    A, B
    C
    B, C
    D
    C, D

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    By whom the number of organisms are limited at trophic level of food chain? a.Less availability of energy at higher tropic level b.Sufficient food supply c.Polluted air d.Water

    Explain food chain and trophic levels.

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