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Question
Number of pairs of spiracles in cockroach are
Number of pairs of spiracles in cockroach are
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Solution
The correct option is D 10
The tracheal system (respiratory system) opens to the outside through slit-like openings called as stigmata or spiracles. In cockroach, there are two pairs of spiracles in the thoracic region and 8 pairs of the first abdominal segments. Thus, total 10 pairs of spiracles are present.
Therefore, the correct answer is option D.
The tracheal system (respiratory system) opens to the outside through slit-like openings called as stigmata or spiracles. In cockroach, there are two pairs of spiracles in the thoracic region and 8 pairs of the first abdominal segments. Thus, total 10 pairs of spiracles are present.
Therefore, the correct answer is option D.
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