What is the definition to heredity

the passing on of physical or mental characteristics genetically from one generation to another.

or

the inheritance of a title, office, or right.

Explanation:

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.