Which one of the following is a filter feeder?

Catfish

Octopus

Oyster

Pelican

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Answer is Wrong!

This question was previously asked in

UPSC IAS – 2021

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Option C is the correct answer. Oysters are filter feeders, meaning they obtain nutrition by filtering suspended food particles from water.

A filter feeder is an animal that feeds by straining suspended food particles from water. Examples include bivalve molluscs like clams and oysters, as well as some fish, whales, and birds.

Catfish are generally bottom feeders or predators. Octopuses are predatory cephalopods. Pelicans are birds that typically catch fish directly with their beaks, rather than filtering.

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