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Question

Number of chambers in the heart of cockroach is

A
5
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B
9
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C
13
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D
16
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Solution

The correct option is B 13
Cockroach has a 13 chambered tubular heart. Oxygenated blood enters each chamber through a pair of a slit like openings called ostia. The first chamber opens into aorta which further opens into head sinuses.
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