Which term refers to genetic changes which give their carriers a better chance to survive and reproduce than individuals without the genetic change who live in the same environment?

Ais cytoplasmb is cell membranec is ribosomesd is dnaur welcome and can i pls have brainliest?

From a high concentration to a low concentration.

Iam not sure but to me it with be a or dsorry if i was late! hope this ! : )if you really want me to find out the answer that is correct tell me and i will do more research but the a or d makes sense to me.