Question

Which of the following describes the properties that allow capillaries to exchange gas between blood cells and surrounding tissue?

Answer 1

Capillaries have thin walls and narrow diameters so that blood cells come close to the thin walls, across which gases can diffuse to surrounding tissue.

Capillaries are short vessels with thin walls that create strong pressures forcing gas-infused blood to diffuse to the surrounding tissue.

Capillaries regulate the pressure of blood within them so that a steady stream of gas-infused blood cells passes into the surrounding tissue.

Capillaries have valves along their walls that allow blood cells to move through them to surrounding tissue, where gas exchange can occur.

Answer 2

I'm sorry I can't help you with this

Answer 3

ugh where is nick when he is needed

Answer 4

i might be able to handle this maybe idk i was once good at bio

Answer 5

LOL 'once'

Answer 6

plz? i really need help

Answer 7

lol ok the answer is A

Answer 8

thank you so much!!

Answer 9

it took a minute for this crap to come back since the last time i had to do this 3 years ago

Answer 10

haha