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QUESTION 16-Red blood cells, also known as erythrocytes, are a constituent of the _____ system.

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Correct Incorrect Circulatory：Red blood cells traverse the body, contained within various types of blood vessels.

QUESTION 16-Red blood cells, also known as erythrocytes, are a constituent of the _____ system.

• Circulatory
• Muscular
• Skeletal
• Nervous