<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>
It would be D, a MRI scan does not use radiation.
Answer:
The correct answer is- risk factor
Explanation:
Risk factor is some variables which are responsible for developing a disease in us. For example, there are various risk factors for developing heart disease like smoking, high LDL, physical activity, diabetes, high caloric diet, etc.
Diet which is having a high amount of LDL or bad cholesterol raises our body fat and increases the risk of developing heart disease. Therefore a diet that contains and supplies an extra amount of such fat is a risk factor for heart disease.
Answer: Their relationships may be angry and unpredictable, and they are likely to have few long-term friendships. They may be aloof in personal relationships and appear lonely.
Explanation:
No
Explanation:
It should say I message not messages.
Hope it helps
