Question

HELP, Please this can bring my grade down a ton! and Its due today!!!

Oxygen and carbon dioxide can diffuse through the walls of which blood vessels?
A.
arteries
B.
capillaries
C.
veins
D.
neurons

Answer 1

C. veins.

Step-by-step explanation:

Oxygen is used to breath. carbon dioxide is used for the veins.

hope this helped.

Answer 2

B

Step-by-step explanation:

capillaries! hope this helps fingers crossed hope u get a good grade

-emma :)