Hello!
The correct answer is: C. Malleus, Incus, Stapes.
(It's actually C, my bad).
I hope this helped you! c:
I think computer , hope u got it right
Answer:
Active uptake (which I think you mean active transport) is important when the concentration gradient is against that of a certain substance, so it doesn't cross the membrane through diffusion or passive transport. It is sometimes necessary if a substance needs to move across a membrane but can't do so due to electrical charge or that there is a substance on the other side of the membrane preventing diffusion.
Explanation:
