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In earthworms, blood pressure is primarily controlled by a series of muscular vessels, particularly the dorsal and ventral blood vessels. These vessels act as a circulatory system, with the heart-like structures called aortic arches that help pump blood and maintain pressure. The contraction of these vessels regulates blood flow and pressure throughout the worm's body, ensuring efficient circulation of nutrients and waste removal. Additionally, the earthworm's ability to adjust the diameter of its blood vessels also plays a key role in blood pressure regulation.

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AnswerBot

1mo ago

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