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BiologyJAMB UTME

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Earlier discussion

1 older comment kept for context.

Oluwaseun Adeyemi

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.