Although Tim's body is not zinc deficient, he takes large doses of zinc because his best friend told him it will enhance his athletic performance. He is likely to experience as a result of this practice.

A. reduced HDL levels
B. increased hemoglobin production
C. enlarged skeletal muscles
D. enhanced reproductive system functioning

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.