1) What does the heart do? a) control feelings b) pump blood to all parts of the body c) remove waste products such as Co2 2) Describe the wall of the arteries a) thick elastic wall b) thin elastic wall c) contain valves 3) How many rooms in the heart? a) 2 b) 4 c) 6

Circulatory system

Rangliste

Visuel stil

Indstillinger

Skift skabelon

Gendan automatisk gemt: ?