the answer is all of the above
<span>Desirable traits become more common in populations because of the process of natural selection.</span>
I think it’s D? I’m not sure sorry if I’m wrong
Your nerves go into your bone, I know it sounds crazy but its true, your Skeletal system is mixed with your nerves, it helps you function, without your nerves going into your bones we couldn't be able to feel if a bone is hurting or if you are getting hurt without your nerves you couldn't feel pain your nerves help you feel pain and where the pain is coming from.
