Answer:Polymerization, any process in which relatively small molecules, called monomers, combine chemically to produce a very large chainlike or network molecule, called a polymer. The monomer molecules may be all alike, or they may represent two, three, or more different compounds.
Explanation:
I would think the answer is B.) All species share a common ancestor and that change occurs through time.
- I've recently went over this again with my teacher. I hope this helps! (:
In terms of human evolution, the sagittal crest was usually more pronounced and larger in older and robust species compared to younger or gracile species.
Hope that helped! :)
