BI-1153
Arteries, veins and capillaries
Biology · Secondary 3 · Medium · Arteries, veins and capillaries
Which statement about arteries and veins is correct?
- Arteries have thin walls and many valves.
- Arteries have thick walls and no valves (except near the heart).
- Veins have thicker walls than arteries and no valves.
- Veins have thin walls and no valves.
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