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Do humans have an open or closed circulatory system? Explain.​
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Do humans have an open or closed circulatory system? Explain.​

User Dmitriy Zhiganov
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Answer:

Step-by-step explanation:

Organisms have different forms of circulatory systems. Humans have a closed circulatory system, while many mollusks and other invertebrates have an open system. In a closed circulatory system, blood is enclosed within blood vessels.

User Harry Lakins
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