Question

what is meant by open and closed type of circulation​

Answer 1

Answer:

Closed and open circulatory systems:

In closed circulatory systems, the heart pumps blood through vessels that are separate from the interstitial fluid of the body. ... In an open circulatory system, the blood is not enclosed in the blood vessels, but is pumped into a cavity called a hemocoel.

Answer 2

Answer:

In closed circulatory system the hear pumps blood through vessels

In open circulatory system the blood is not enclosed in the blood vessels.

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