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Tracheal tubes are present for which type of organisms?

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in Biology – Class 11 by (272k points)
Tracheal tubes are present for which type of organisms?

(a) Birds

(b) Worms

(c) Frogs

(d) Insects

This question was addressed to me in exam.

My question is from Respiration in Animals in division Breathing and Exchange of Gases of Biology – Class 11

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Right option is (d) Insects

For explanation I would say: Insects respire using an organ called trachea. Several tubes are present for trachea that is uniformly distributed inside the body of the organism. The trachea divides into tracheoles through which the oxygen is supplied to the body parts.

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