Differentiate between the following pairs on the basis of the aspect given in the brackets.

Photosynthesis and respiration (reactants)

Differentiate between the following pairs on the basis of the aspect given in the brackets.

Respiration and breathing (organs involved)

Give suitable explanations for the following:

Breathing through the nose is said to be healthier than through the mouth.

Give suitable explanations for the following:

Why does gaseous exchange continue in the lungs even during expiration?