<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>
<span>Why womens become more infected with hiv ?
HIV is more prevalent in women because they are at increased risk of infection. <span>The reasons for this are both physical and socio-cultural.</span></span>
Answer:
Chyme
Explanation:
Chyme is the the pulpy acidic fluid which passes from the stomach to the small intestine, consisting of gastric juices and partly digested food.
Define objectives and standards, measure performance, compare progress, take required action.
