Question

2. Oxygen constantly diffuses from air or water into an animal's bloodstream. For this to happen, the concentration of oxygen in the blood must be (1 point)

-greater than the concentration of oxygen in the air or water.
-greater than the concentration of carbon dioxide in the air or water.
-lower than the concentration of oxygen in the air or water.
-lower than the concentration of carbon dioxide in the air or water.

Answer 1

what would be logical?

Answer 2

diffusion in this case means that oxigen is going from a high concentration to a low concentration. So should the oxigen concentration in the blood be higher or lower than the oxigen concentration in the air or water?

Answer 3

Lower??

Answer 4

exactly :)

Answer 5

so would it be C??

Answer 6

Yes.

Answer 7

Okay thank you so much. Do you think you could help with a couple more??

Answer 8

I could but I really should get going... it's already past 3 am where I live.
I'm sure some other users could help you out.

Answer 9

Awe okay, thanks for the help(: