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Q.

Choose the correct statement about cockroach.

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a

Spermathecae store sperms in male cockroach.

b

Malpighian tubules are the excretory structures located at the junction of foregut and midgut.

c

Heart consists of elongated muscular tube lying along mid ventral line of both thorax and Abdomen

d

Respiratory system consists of a network of trachea, that open through ten pairs of spiracles present on the lateral sides of the body.

answer is D.

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Detailed Solution

Tracheal system is the respiratory system in cockroaches with 10 pairs of spiracles.

Heart of cockroach consists of elongated muscular tube lying along mid dorsal line of thorax and abdomen.

Malpighian tubules present at the junction of midgut and hindgut help in excretion.

In female cockroaches, a pair of spermatheca help in storing sperm.

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Choose the correct statement about cockroach.