1. An animal living in water uses oxygen dissolved in water.
2. The solubility of oxygen in water is much lower.
3. So, the amount of oxygen available is much lesser than air.
4. Hence the rate of breathing is faster in aquatic animals.
2. The solubility of oxygen in water is much lower.
3. So, the amount of oxygen available is much lesser than air.
4. Hence the rate of breathing is faster in aquatic animals.
