Multiple choice

Blood circulates around the body through ____.

  1. red blood cells

  2. platelets

  3. blood vessels

  4. plasma
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Blood vessels form the complete circulatory pathway through which blood travels. Red blood cells, platelets, and plasma are components carried WITHIN the blood, but the vessels themselves (arteries, veins, capillaries) are the infrastructure that allows circulation to all body tissues.

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