Question

what are Spiracles and tracheae​

Answer 1

they are the features mainly present in cockroach for respiration

trachea is also in humans for air passage and spiracles are holes present at side of the body of cockroach

Answer 2

Answer:

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Explanation:

Insects, and some other invertebrates, exchange oxygen and carbon dioxide between their tissues and the air by a system of air-filled tubes called tracheae. Tracheae open to the outside through small holes called spiracles. In the grasshopper, the first and third segments of the thorax have a spiracle on each side.