Spiracles

Spiracles

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Credit: VALERIE GILES/SCIENCE PHOTO LIBRARY

Caption: Tropical beetle larva spiracles, openings for respiration, which attach internally in the invertebrate body to tubular invaginations that form the tracheae. Air moves through the branching tracheal system to finely branched tracheoles, where oxygen is passively diffused, allowing the animal to breathe.

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Keywords: animal, beetle larva, beetle larvae, bombuscaro, bombuscaro national park, breath, breathe, breathes, breathing, cuticle, ecuador, insect, insect larva, insect larvae, insect respiration, insecta, invertebrate, invertebrate respiration, invertebrates, larva, larvae, national park, national parks, natural, nature, respiration, spiracle, spiracles, trachea, tracheae, tropical beetle, tropical beetles, tropical insect, wildlife, zamora, zoology

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