through the process of simple diffusion, materials move across a cell membrane
a.
from an area of lower concentration to an area of higher concentration.
b.
from an area of higher concentration to an area of lower concentration.
c.
between areas of equal concentration.
d.
all of these

is only a line? i think so

step-by-step explanation:

no association

step-by-step explanation:

if you have eyes and you can use them efficiently you can see that it just looks like random dots like do a line of best fit and like they're so spread out it's such a weak association you might as well consider it nonexistent