<span>Blood vessels are dilated to increase the amount of oxygen carried in the blood, and the lungs work harder to meet the body's oxygen demands.
Blood volume increases during exercise, making the body more efficient, so it is not necessary for the lungs to work as hard.
The lungs determine the speed at which the heart pumps, so blood flows at a level that accommodates oxygen absorption in the muscles.
The lungs expand and contract, which increases the rate of blood flow so the muscles can
hope this helps</span>
Saturated fats
they are in animals and vegetable oil, chocolate, meat , eggs, and dairy
Answer: They should explain that everyone is unique and ask how they would feel if the situation were reversed
Explanation:
The pulmonary artery and its branches deliver blood rich in carbon dioxide (and lacking in oxygen) to the capillaries that surround the air sacs. The circulation of the blood through the lungs. The veins that return the oxygenated blood from the lungs to the left atrium of the heart.
You always want to stand tall.
REASON:
Do not appolagize for listing to your gut.
Avoiding eye contact maks you an easy target. It makes you look scared.
If you wish you could, he could talk you into it.
Simply stand tall, say no thanks, and walk away.
