Question

How respiration takes place in cockroach?
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Answer 1

Explanation:

In cockroach, respiration occurs through spiracles – a small opening on the sides of its body. ... When oxygen-rich air enters into the body of the cockroach via spiracles into the tracheal tubes, it diffuses into various tissues and cells of the body. Here, oxygen is used up to liberate energy.

Answer 2

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Question

How respiration takes place in cockroach?

Answer

◇The respiratory system of cockroach is well developed compared with other terrestrial insects.

◇Branched tubes known as trachea open through 10 pairs of small holes called spiracles or stigmata, present on the lateral side of the body.

◇Terminal branches of tracheal tubes are called tracheoles which carry oxygen to the entire body. The spiracles open and close by valves regulated by sphincter or spiracular muscles. Each tracheole is filled with a watery fluid through which exchange of gases takes place.

◇During high muscular activity, a part of the fluid is drawn into the tissues to enable more oxygen intake and rapid diffusion.

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