AvrilZhang AvrilZhang

03-08-2020
Biology

contestada

why the circulatory system is considered to be a closed system?

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kk5996282 kk5996282

03-08-2020

Explanation:

human have closed circulatory system. this means blood is always enclosed in the vessels and the heart while circulating throughout the body IN this type of system blood is pumped by heart through arteries and veins and does not fill the body cavities thats why the circulatory system is considered to be a closed system

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