Marine plants grow in marine ecosystems. Shallow water contains small fishes, prawns feeding on algae. The central part of sea has less number of aquatic living organisms. ____________ are secondary consumers in such ecosystems. Ocean has a large amount of nutrients. The bottom of oceans has more number of decomposers.

Planktons

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Large Fishes

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Small Fishes

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All of these

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Solution

The correct option is B Large Fishes
Marine plants grow in these ecosystems. Shallow water contains small fishes, prawns feeding on algae. The central part of sea has less number of aquatic living organisms. Large fishes are secondary consumers. Ocean has a large amount of nutrients. The bottom of oceans has more number of decomposers.

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Similar questions

Choose the correct statement
Assertion [A]: Marine ecosystems have less trophic levels than terrestrial ecosystems.
Reason [R]: Most of phytoplankton is available for consumption and assimilation by primary consumers in aquatic ecosystems.

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Reason [R]: Most of the phytoplankton is available for consumption and assimilation by primary consumers in aquatic ecosystems.

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