nba2klegend nba2klegend

25-02-2021
Health

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Why is blood the most important component of the cardiovascular system ? please help 3 sentences

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phillip988 phillip988

26-02-2021

The heart is the key organ in the circulatory system. As a hollow, muscular pump, its main function is to propel blood throughout the body. It usually beats from 60 to 100 times per minute, but can go much faster when necessary.

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