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Mark the incorrect statement about the heart of cockroach.

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It is an elongated muscular tube.

It lies along mid-dorsal line of thorax and abdomen.

It is differentiated into funnel-shaped chambers.

It opens anteriorly into the head sinus through ostia.

answer is D.

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Detailed Solution

The heart of cockroach opens into head sinus through anterior aorta. Ostia are the openings in either side of funnel-shaped chambers of the heart through which blood from the pericardial sinus enters the heart.

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