Answer:
stethoscope is the instrument used to measure heart beat
Answer:
Gas exchange occurs at two sites in the body: in the lungs, where oxygen is picked up and carbon dioxide is released at the respiratory membrane, and at the tissues, where oxygen is released and carbon dioxide is picked up.
Explanation:
<span>presence of protoplasm, self built organisms, self repair, reproduction and various life process like metabolism, nutrition, respiration, exchange of material, transportation, excretion and irritability.</span>
This is true, it is the first noble truth in buddhism
hope this helps :))
Modeling and predicting what is bound to happen in the future using deduction of impossible possibilities