Question

The higher the site, the less Oxygen content. In your opinion, is there a change in the respiratory mechanism that occurs with respect to it?

Answer 1

Due to presence of rarer
density of air.

Explanation:

Oxygen content in air,i.e oxygen present in a given volume of air is constant,but with increase in altitude air becomes rarer and less air is present to breathe ,hence there is corresponding change in respiratory mechanism