What is the difference between an artery and a vein? an artery carries blood away from the heart; a vein carries blood to the heart. an artery is responsible for carrying blood; a vein is responsible for gas exchange. an artery is responsible for gas exchange; a vein is responsible for carrying blood. an artery carries blood to the heart; a vein carries blood away from the heart.

A) An artery carries blood away from the heart; a vein carries blood to the heart.
Actually neither arteries nor veins are responsible for gas exchange, only the tiniest thin-walled vessels do- they are called capillaries.

An artery carries blood away from the heart; a vein carries blood to the heart. Just remember... Artery away

Personality is a mixture of characteristics/qualities that form an individual's distinctive persona. it can be influenced by environmental and biological factors; one's culture is a most important factor that shape personality. extreme mood swings, unstable relationships, distorted self-image, impulsive/risky behavior, explosive anger, chronic feelings of sadness/emptiness, etc. these could indicate that someone could have a personality disorder.