Answer:
Less air sacs or surface area = less gas exchage = less oxygen makes it to the blood
Explanation:
Well, smoking is very bad cuz it basically breaks down your alveoli (air sacs) and causes their wall to be so thin that they start to merge with each other. Merging lowers the available surface area in lung for gas exchange, thus you cannot exchage the oxygen from your lung into the blood. Even though when you breathe in you take in all the oxygen you possibly can, it does not matter cuz it won't be making it to your blood as efficiently.
Answer:
The answer is saliva. It makes food moist and slippery
Explanation:
Answer:
There are two main types of blood cholesterol: LDL (low-density lipoprotein) cholesterol, which is considered to be “bad” cholesterol because it can cause plaque buildup in your arteries, and HDL (high-density lipoprotein) cholesterol, which is considered to be “good” cholesterol because higher levels provide some.
credits: Know Your Risk for Heart Disease | cdc.gov
You should consume around 2 bottles of water after any physical activity
The need for protein is actually a need for amino acids. The correct option among all the options that are given in the question is the second option or option "b". The body cannot create amino acids on its own.
You should eat 0.9 to 1.25 grams of carbohydrates per pound of body weight.
