Question

Pressure of blood is high, Tough,
flexible and thick walls, Carries blood
back to the heart, The smallest blood
vessels, Thin walls due to less blood
pressure, Walls are only one cell thick
The largest blood vessels, carries blood
away from the heart-
Arteries
Capillaries
Veins​

Answer 1

Arteries - Pressure of blood is high, tough flexible and thick walls, the largest blood vessels

Veins - Carries blood back to heart, Thin walls due to less blood pressure.

Capillaries - The smallest blood vessels, walls are only one cell thick.