Assertion: circulatory system | /r/CapableOf | act like the lifeline of the body
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text: The circulatory system is a vast network of tubes and acts like the lifeline of the body, transporting a number of substances from every cell and tissue towards their ultimate destination – whether it is toxic substances that need to be metabolized in the liver, hormones that need to be delivered to target organs or nutrients and oxygen required by every cell.