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Open Vs, Closed Circulatory Systems - A Level Biology
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Blood can flow through vessels inside the body, such as arteries and veins. This type of circulation is called closed circulation. Open circulation happens when there are no vessels to contain the blood, and it flows freely through the cavities of the body.
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Gidemy Elementary School
40 Просмотры · 01/03/23
Gidemy Elementary School
59 Просмотры · 01/03/23
Gidemy Elementary School
20 Просмотры · 01/03/23
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