Biology · Breathing and Exchange of Gases
Respiration in insects is called direct because:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The cells exchange O2 and CO2 directly with the air in the tubes
- 2The tissues exchange O2 and CO2 directly with coelomic fluid
- 3The tissues exchange O2 and CO2 directly with the air outside through body surface
- 4Tracheal tubes exchange O2 and CO2 directly with the haemocoel fluid, which then exchanges with tissues✓
Correct answer
Tracheal tubes exchange O2 and CO2 directly with the haemocoel fluid, which then exchanges with tissues
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