Which one of the following is a filter feeder?

Which one of the following is a filter feeder?

[UPSC Civil Services Exam – 2021 Prelims]

(a) Catfish

(b) Octopus

(c) Oyster

(d) Pelican

Answer: (c)

Explanation:

Recently, the Trifed inked an agreement with the Jharkhand-based Purty Agrotech for the promotion of pearl farming in tribal areas.
Oysters are natural filters. They capture the particles of size as small as 4 micrometers on their gills. Their gills act as filter which is self-cleaning.
Generally, water get filtered by something which is static so that water can easily pass through them and get filtered. Pelicans, Catfish and Octopus are large organisms. Oysters are small organisms, found cemented to rocks or other hard substrates.

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Tenth Schedule of Constitution of India: Important Question

The provisions in Fifth Schedule and Sixth Schedule in the Constitution of India are made in order to

Under which Schedule of the Constitution of India can the transfer of tribal land to private parties for mining be declared null and void?

The Ninth Schedule was introduced in the Constitution of India during the prime ministership of

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