Question

(b) To inhale ......... and to exhale
is called respiration.​

Answer 1

To inhale oxygen and to exhale Carbon Dioxide is called Respiration

Definition :-

respiration is the movement of oxygen from the outside environment to the cells within tissues, and the transport of carbon dioxide in the opposite direction.

Answer 2

Answer:

to inhale and to exhale is called breathing.

breaking down of oxygen into complex substances is called respiration