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Elodia [21]
3 years ago
6

What is the difference between an open and closed circulatory system?

Biology
1 answer:
Ber [7]3 years ago
3 0
In a closed circulatory system the blood flows through closed vessels, the internal organs aren't in contact with the blood. In a open circulatory system the blood comes through open spaces called lacunae and sinuses. The body cavity is filled with blood.
Hope it helps!
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