oxygen flow is low and his lungs do not have a lot of capacity
I would say that the answer is D.
Which of what? I need more information to decipher that.
MRNA is responsible for carrying coded information from the nucleus.... i hope you it will help you.... :)
Answer: Diffusion occurs due to the random movement of particles. It usually happens due to a concentration gradient, meaning that molecules move from an area of high concentration to an area of lower concentration.
Explanation:
