Prolonged and constant use of tobacco can weaken the user's immune system and increase the risk of many diseases.

which disease makes the air sacs in the lungs less elastic, reducing their ability to absorb oxygen?

a. chronic bronchitis

b. emphysema

c. lung cancer

d. oral cancer

How quickly a drug enters your bloodstream also depends on

From the list below, choose all the correct statements about the functions of fat. select all that apply. select all that apply. fat provides flavor and texture to food (think ice cream) and also leaves you satisfied for longer after a meal. fat in the diet allows for the transport of vitamins a, c, and e because they are fat-soluble. lipids are an essential component of cell membranes, act as insulation under the skin, and protect organs from injury. the body can rely on carbohydrate stores during periods of low energy intake. fat is a good source of energy providing 4 kcal/g.

How much of the body is affected by chemotherapy