BI-1131
Arteries, veins and capillaries
Biology · Secondary 3 · Medium · Arteries, veins and capillaries
Which statement correctly describes the role of capillaries in the circulatory system?
- They allow exchange of substances between blood and body cells.
- They pump blood away from the heart at high pressure.
- They store extra blood when the body is at rest.
- They prevent blood from flowing backwards using valves.
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