A normal blood cell is round and almost donut-like in shape. Sickle cells are hard, rigid, and shaped in a curve.
The answer is A. to cure Disease
Answer:
Explanation:
As you grow older, your pulse rate is about the same as before. But when you exercise, it may take longer for your pulse to increase and longer for it to slow down afterward. Your highest heart rate with exercise is also lower than it was when you were younger. Breathing rate usually does not change with age.
Answer:
NopE
Explanation:
Although you can't feel it, there is much more going on in your body than you think. Stuff gets messed up, and it's just not good. Over time, perhaps, your lungs will get better, but just don't okay?