Question

Respiration in insects is called direct because
(A) The cells exchange 0,1 Co, directly with the air in the tubes
(B) The tissues exchange 0,/ CO, directly with coelomic fluid
C) The tissues exchange O / CO, directly with the air outside through body surface
(D) Tracheal tubes exchange 02/co, directly with the hemocoel which then exchange with tissues​

Answer 1

Answer:

I am helpless bro.

Explanation:

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Answer 2

Answer:

(D) Tracheal tubes exchange 02/co, directly with the hemocoel which then exchange with tissues.

This is the correct answer .

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