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The circulatory system can be open or closed, it depends on your species/ organism

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15y ago
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14y ago

open It is an open circuit, as the vessels dont meat each other they have a start and an end, but a closed system as it has vessels that carry the lymph.

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14y ago

Mammals have a closed circulatory system because it pumps blood into your body/organs which cant flow in all at once.

Audrey Mays

7th grade

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15y ago

It is closed. It is closed.

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10y ago

closed

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Q: Is the circulatory open or closed?
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