Home Biology Breathing and Exchange of Gases NCERT Respiration in insects is called direct beca…
Biology Breathing and Exchange of Gases NCERT Single Correct MCQ
Published on: August 12, 2026

Respiration in insects is called direct because

A
The cells exchanges O 2 /CO 2 directly with the air in the tubes.
B
The tissues exchange O 2 /CO 2 directly with coelomic fluid.
C
The tissues exchange O 2 /CO 2 directly with the air outside through body surface.
D
Tracheal tubes exchange O 2 /CO 2 directly with the haemocoel which then exchanges with tissues.

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