What role does heredity play in deterring our traits

Heredity influences human behavior by the passing on of genes from a parent to its offspring for example eye color or hair color.

None, you can not inherit any traits from someone but only genes, rather you can be raised to act, behave (certain traits) etc... by someone but you cant i herit any of that, more of stuff like how tall you are or your eye color

Smoking damages the respiratory system by inhalation of a foreign substance, that is absorbed and residue is left behind on our lungs sponge like substance. the gas that is inhaled also increase your blood pressure and dilates your blood vessels. also the process of inhaling and exhaling the smoke it causes irritation to the throat and mouth. smoking can cause lung cancer and other respiratory and circulatory diseases.