In an aquatic ecosystem , a mollusc typically belongs to

T_{1}

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T_{2}

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T_{3}

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T_{4}

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Solution

The correct option is B $T_{2}$
Mollusc constitutes the second largest phylum in the animal kingdom which includes a group of animals living on land, in marine water, and in fresh water. Mollusks include both herbivores and carnivores animal. They eat both plants and small animals. In an aquatic ecosystem, a mollusk acts as primary consumers, so it belongs to second trophic level (T2).

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