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Question

The plants or the producers which fix the solar energy constitute the


A

Second trophic level

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B

Third trophic level

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C

Fourth trophic level

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D

First trophic level

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Solution

The correct option is D

First trophic level


The correct option is D.

Explanation of the correct option:

  1. Green plants have the ability to use the solar energy.
  2. They make their own food in the presence of sunlight using water, minerals and carbon dioxide.
  3. During that time Green plants or producers fix the solar energy, thus they are coming under the first trophic level.

Explanation of the incorrect options:

Option A:

Herbivores or primary consumers that eat green plants constitute the second trophic level, for example, snails, rabbit, deer and goat.

Option B:

Carnivores or secondary consumers that feed on herbivores constitute the third trophic level, for example, snakes, frogs, small birds and small fish.

Option C:

Large carnivores (top carnivores) or tertiary consumers that feed on the small carnivores constitute the fourth trophic level, for example, eagle, tiger and lion.

Final answer: The plants or the producers which fix the solar energy constitute the first trophic level.


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