Why should nutritional deficiencies be taken seriously? if left untreated, they can result in serious damage to the body. you can possibly die from a serious deficiency. deficiencies let you know that you need to move to a better area. choices a and b

The reason why nutritional deficiencies should be taken seriously is because if they are left untreated, they can possibly die from a serious deficiency - they aren't called deficiencies for no good reason! Known cases from the past include scurvy which was common among sailors who didn't have enough fruit.

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. 

Apenis is also called phallus