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Which of the following statements is inc...

Which of the following statements is incorrect pertaining to cockroach

A

Ostia have valves which allow blood to pass only into heart

B

Thoracic and abdominal spiracles are valvular

C

Wall of trachea is made with lamina propria, endothelium and taenidia

D

The taenidia keep the trachea always open and prevent it from collapsing

Text Solution

Verified by Experts

The correct Answer is:
C
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