True the heart like any muscle strengthens when you use it
Normal urine varies in color from pale yellow to a deep golden color - depending on the concentration of the urine. examination of urine is an important screening test that provides information about the urinary system. the test determine the presence of any abnormal elements that might indicate various conditions.
Answer:
Explanation:
Erythropoiesis is the process by which red blood cells, also known as erythrocytes, are made and are stimulated by decreased levels of oxygen in the blood, which sets into motion the secretion of erythropoietin, a hormone central to the formation of red blood cells
REM Sleep
This is due to the fact that there is low muscle tone going on throughout your body.
