The alveoli is where the oxygen moves out of the lungs and into the blood. At the same time carbon dioxide moves out of the blood and into the lungs to be exhaled.
There are three major classes of macronutrients: carbohydrates, lipids, and proteins. All three of these nutrients are needed in relatively large amounts AND they contain Calories (note the capital C which indicates kilocalories) which can be "burned" in your body to create energy for your body
- My friends are using drugs too.
-Using drugs will make me forget or not care about a major problem I am facing.
-Nothing bad will happen to me if I use illegal drugs.
Answer:
If you lose too much blood, your brain doesn't get enough oxygen to support life.Without treatment measures, your body will completely lose its ability to pump blood and maintain oxygen delivery once you've lost about 50 percent of your blood volume. Your heart will stop pumping, other organs will shut down, and you'll likely be in a coma.
Explanation:
The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide. These roadways travel in one direction only, to keep things going where they should.
three ways of how to take care of your heart are
Eat a heart healthy diet
If overweight, lose weight
try not to drink alcohol
