<h3>A. Cellulose </h3>
Natural Selection is: <u>the process whereby organisms better adapted to their environment tend to survive and produce more offspring.</u>
An example of this is our appendix. We no longer use our appendix because food nowadays is softer than what our ancestors used to eat.
Our ancestors could quickly digest (through their appendix) tree barks because they ate them frequently versus now we don't even use them at all
