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Question

Siphuncle of Nautilus

A
Connects all chambers with living animal
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B
Fills all chambers with gas
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C
Inflicts injury over intruder
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D
Both A and B
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Solution

The correct option is C Inflicts injury over intruder
A structure peculiar to Nautilus is siphuncle. It is a living tube that runs through the spiraled shell of Nautilus. It connects all chambers with living animal. It is used for throwing out water from the chambers and filling those with gases as the shell grows throughout the life.
Thus, the correct answer is option C.

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