Q.

Which of the following depicts the correct sequence of blood flow in cockroach?

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a

Anterior aorta → heart → ostia → sinuses → aorta

b

Heart → anterior aorta → ostia → sinuses → heart

c

Sinuses → ostia → heart → anterior aorta → sinuses

d

Heart → ostia → sinuses → anterior aorta → heart

answer is C.

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Detailed Solution

In cockroach, blood flows from sinuses through the ostia into heart and then through the aorta back to the sinuses

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