Your answer is D
Biology is my best subject
I’d say either A or B make the most sense but I’m more confident that it’s B rather than A.
Hope this helps :)
Answer:
Organ is a unit/group of tissues (structurally) that performs a basic function while organ system is a group of various organs that together helps in certain biological processes (must for one's survival).
The rate at which molecules diffuse across the cell membrane is directly proportional to the concentration gradient.<span> This applies to simple diffusion, which is governed by Fick's law. </span>When the concentration gradient is heavier outside the cell, substances diffuse into the cell where it is lower.
can i get brainliest if my answer is good? i am trying to reach Virtuoso and I need 2 brainliest.