By Dario Molina
There is a lot of variety between species! Not all same species organisms look like each other at all.
Off spring will look like their parents due to inherited traits passed on through genes.
External conditions (biotic or abiotic) are the driving force of evolution and will most likely affect survival.
National Geographic (n.d.). What are Darwin’s four postulates of evolution by natural selection? - National Geographic. Retrieved January 12, 2016
Spear, K. (2010, March 8). Chapter 3. Darwinian Natural Selection Retrieved January 12, 2016
Stiffler, L. (2011, August 1). Darwin’s Theory of Evolution. Retrieved January 12, 2016