How many spiracles are present in cockroach? Mention their locations. (K)
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Cockroach has spiracles on their exoskeleton to allow air to enter the body. These are the openings of respiratory system to outside of the body. It has total 20 spiracles present in 10 pairs on lateral sides of the body. Usually one pair per segment is present. Two pairs are present in thoracic segments and remaining 8 pairs are present in abdominal segments.
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