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An average human heart beats at 72 beats per minute which adds up to an approximate value of 2.5 billion times during an average lifespan […]
How does blood travel? The heart, the blood vessels and blood are the three main components of the circulatory system of the body that is […]
Blood is a fluid that flows through the body. It is thicker than water and is salty to taste. There are about 10.6 pints of […]
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