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Q.

In which of these organisms the ink gland is found?

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a

Starfish

b

Cuttlefish

c

Jellyfish

d

Sponge

answer is A.

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Detailed Solution

Cuttlefish (Sepia) belongs to the phylum Mollusca. It possesses a large ink gland that opens into the rectum. When attacked by an enemy or predator, the cuttlefish releases ink through the anus. The ink makes the water dark and cloudy, which confuses the predator and helps the cuttlefish to escape.

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