Mode of respiration in Eukaryotes ………...

Fermentation is ………………

Strenuous exercise produces ………….. in muscles.

Strenuous exercise causes

You have long breath when you are tired. Why?

Energy is stored in

The percentage of carbon dioxide in exhaled air is ……………

Muscular pain is caused due to accumulation of……………

The end products of aerobic respiration are ……………

The percentage of oxygen in inhaled air is