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Do earthworms have a closed circulatory system?

Understand the Problem

The question is asking whether earthworms possess a closed circulatory system, which requires an understanding of their anatomy and physiology.

Answer

Closed circulatory system

The final answer is that earthworms have a closed circulatory system.

Answer for screen readers

The final answer is that earthworms have a closed circulatory system.

More Information

Earthworms have a closed circulatory system, which means their blood is contained within vessels throughout its circulation. This is more efficient than an open circulatory system, allowing for better regulation of blood flow and nutrient distribution.

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