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Question

Excretory function in Ascidia is performed by

A
Dorsal tubercle
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B
Neural gland
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C
Endostyle
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D
Dorsal lamina
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Solution

The correct option is B Neural gland
Ascidia is an exclusively marine tunicate. The adult is sessile but the larval form is free-swimming. A well developed excretory system is not observed in Ascidia. Nephrocytes present in the blood accumulate excretory products in the cytoplasm. Neural glands have also been suggested to perform excretory functions in Ascidia.
So, the correct answer is 'Neural gland'.

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