How many spiracles are there in cockroaches?

40 spiracles

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10 spiracles

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20 spiracles

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60 spiracles

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Solution

The correct option is C 20 spiracles
The spiracles are openings through which the air enters the body of the cockroach and is carried by tracheal tubes into the cells of the body. There are 10 pairs of spiracles, which are lateral openings in the body of the cockroach. Thus, there are 20 spiracles in total.

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