Mainly because our lungs are made to intake air, and if we where to inhale water we would drown. oxygen can only be obtained from the air because our lungs would be able to expell the excess stuff from air easier than in water. hope i helped.
Answer: Budding
Explanation: The organism is as3xually reproducing an offspring that is an exact clone of itself in the form of a bud.
This would be considered a mutation.