What happens to RBC of human blood at high altitude?

Hyaline cartilage is not found in_________

A fish which is taken and brought to land dies within a few minutes because of _____

What changes may be observed due to increase in carbon dioxide and hydrogen ions body?

Dead space air is ___

Carbon dioxide is harmful to the body.

What is the primary site for exchange of gases in lungs?

Pneumotaxic centre is located in ____