Science, asked by dheerajakumar7870, 2 months ago

veins are thin walled and have valves.justify?

Answers

Answered by Anonymous

Answer:

Veins are thin-walled and have valves that prevent the blood from flowing back in the wrong direction. Veins carry blood heading toward the heart. Blood coming from the tissues has delivered O2 and picked up CO2 from the cells.

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Answered by phenom001

Answer:

Veins are thin-walled and have valves that prevent the blood from flowing back in the wrong direction. Veins carry blood heading toward the heart. Blood coming from the tissues has delivered O2 and picked up CO2 from the cells.

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veins are thin walled and have valves.justify?​

Answers

Veins are thin-walled and have valves that prevent the blood from flowing back in the wrong direction. Veins carry blood heading toward the heart. Blood coming from the tissues has delivered O2 and picked up CO2 from the cells.

veins are thin walled and have valves.justify?