Multiple choice

The artery can be distinguished from the vein in having _______.

  1. thicker walls

  2. more blood cells

  3. more plasma

  4. larger cavity
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Arteries carry blood away from the heart under high pressure, necessitating thick, elastic walls to withstand the force. Veins have thinner walls and valves to prevent backflow.

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