Respiration in insects is called direct because

The tissuse exchange

O_{2} / C O_{2}

directly with CO elomic fluid

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The cell exchange

O_{2} / C O_{2}

directly with the air in the tubes

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The tissuse exchange

O_{2} / C O_{2}

directly with the air outside through body surface

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Tracheal tubes exchan ge

O_{2} / C O_{2}

directly with the haemocoel which then exchange with tis sues

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Solution

The correct option is B The cell exchange $O_{2} / C O_{2}$ directly with the air in the tubes
Respiration in insects

In insects, respiration is direct because exchange of gases occurs directly between the air present in the tracheal tubes and the body cells.

Final answer
a. The‌ ‌cell‌ ‌exchange‌ ‌ $O_{2} / C O_{2}$ ‌directly‌ ‌with‌ ‌the‌ ‌air‌ ‌in‌ ‌the‌ ‌tubes‌

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Similar questions

Respiration in insects is called direct because

(a) the cells exchange $O_{2} / C O_{2}$ directly with the air in the tubes

(b) the tissues exchange $O_{2} / C O_{2}$ directly with the air in the tubes

(d) tracheal tubes exchange $O_{2} / C O_{2}$ directly with the haemocoel which then exchange with tissues

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