which of the following best describes varicose veins? a. veins cannot prevent the backflow of blood. b…

which of the following best describes varicose veins? a. veins cannot prevent the backflow of blood. b. veins lose the ability to transport blood to the heart. c. veins become used for transporting blood to and from the heart. d. veins become less efficient at transferring waste to the blood. please select the best answer from the choices provided. a b c d

which of the following best describes varicose veins? a. veins cannot prevent the backflow of blood. b. veins lose the ability to transport blood to the heart. c. veins become used for transporting blood to and from the heart. d. veins become less efficient at transferring waste to the blood. please select the best answer from the choices provided. a b c d

Answer

Brief Explanations:

Varicose veins occur when the valves in veins that are supposed to prevent back - flow of blood malfunction. This leads to blood pooling and dilation of veins. Veins still transport blood to the heart in varicose conditions, but inefficiently due to back - flow issues. They are not related to transporting blood from the heart (arteries do that) and not about transferring waste to the blood.

Answer:

A. Veins cannot prevent the backflow of blood.