Answer:
SLEEP ON YOUR BACK OR YOUR RIGHT SIDE, THOSE POSITIONS WILL NOT HURT YOUR BACK
Answer:
Options B and D
Explanation:
In animals, gaseous exchange takes place in the alveoli in the lungs. Generally, animals breath-out (exhale) carbon dioxide and breath-in (inhale) oxygen. Thus, carbon moves from the blood in the form of carbon dioxide into the alveoli in the lungs while the oxygen inhaled moves from the alveoli in the lungs to the blood where it is transported round the body as oxyhaemoglobin.
Hold your breath to find your target heart rate, then be calm until ur heart beat slows until it's the slowest, that's ur resting heart rate
