Answer:
The process by which organisms that are better suited to their environment than others produce more offspring. As a result of natural selection, the proportion of organisms in a species with characteristics that are adaptive to a given environment increases with each generation.
Explanation:
Because all rocks types are different froM one another.
putting on clothes
Explanation:
because we don't know how to put on clothes the day we were born we learn have to do it as we grow up.
I am not sure but here is a link that should help :)
https://www.ncbi.nlm.nih.gov/pubmed/9971764
