Respiration can be deifned as

Respiration can occur in the absence of oxygen in

Respiration can occur in the absence of oxygen in

Respiration can occur in the absence of oxygen in

Respiration can happen in the presence or absence of oxygen.

Minute Volume of Respiration (MVR) in a person can be defined as

Minute Volume of Respiration (MVR) in a person can be defined as

The set A has 4 element and the set B has 5 elements then the number of injective mappings that can be deifned from A to B is