Question

What is the difference between an artery and a vein?

1 An artery carries blood away from the heart; a vein carries blood to the heart.
2 An artery is responsible for carrying blood; a vein is responsible for gas exchange.
3 An artery is responsible for gas exchange; a vein is responsible for carrying blood.
4 An artery carries blood to the heart; a vein carries blood away from the heart.

Answer 1

1. An artery carries blood away from the heart; a vein carries blood to the heart.

Step-by-step explanation:

An artery carries away oxygen-rich blood from the heart to other body parts, whereas a vein takes blood low in oxygen back to the heart for oxidation.

Answer 2

1 An artery carries blood away from the heart,a vein Carrie's blood to the heart