During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will
a) move across the membrane to the outside of the cell.
b) stop moving across the membrane.
c) continue to move across the membrane in both directions.
d) move across the membrane to the inside of the cell.

How many species of living things are alive on earth today? more than 1,000,000 none of these answers are correct 100-500 1,000 –500,000 o 500,000 -1,000,000

Approximately what wavelength of light is best absorbed by chlorophyll a

In response to framton's dialogue about his health issues, mr. sappleton replies: "no? " said mr. sappleton, in a voice which only replaced a yawn at the last moment. then she suddenly brightened into alert not to what framton was saying. what does this statement reveal about how mrs. sappleton feels about framton? a) she finds him boring. b) she's happy he came by. c) she finds him annoying. d) she feels sorry for him