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Which of the following is the correct st...

Which of the following is the correct statement about the circulatory system of cockroach

A

It is closed type of circulatory system

B

It is a complicated type of circulatory system

C

It takes place without the participation of tissue

D

It has 13 chambered heart and in each segment one pair of Ostia are present

Text Solution

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The correct Answer is:
D
Cockroach has open circulatory system. Blood is colourless. It has 13 chambered hearts and each chamber is coordinated by a small opening called Ostia. Contraction and relaxation of each chamber is coordinated by alary muscles.
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