The organisms that survive the longest and produce the most organism are selected naturally by the environment; Thus, if an organism carries certain traits that allows a species to survive and reproduce more than the rest, it shows a potential for a species to increase in number.
*Indentations were not possible in Smore.
Freeman., Quillin K., Allison L., et al. (2014). Biological Science. 5th editions. Glenview, IL: Pearson Education, Inc. Accessed on 2016, April 4. Retrieved from https://view.ebookplus.pearsoncmg.com/ebook/launcheText.do?values=bookID::15832::platform::1004::fromloginpage::N::invokeType::lms::launchState::goToEBook::platform::1004::globalBookID::CM54937806::userID::12247628::scenario::3::scenarioid::scenario3::courseid::P1BIOFAROOQ::pageid::::sessionID::20496867393022561342016::smsUserID::64483765::hsid::9ad51320c94e4fb66241252d35d10227
Phillip, M. (1997). “Evolutionary Genetics”. Population and Evolutionary Genetics. North Dakota State University. Accessed on 2016, April 4. Retrieved from https://www.ndsu.edu/pubweb/~mcclean/plsc431/popgen/popgen4.htm
McGinley, Mark. (2008, January 17). “Intraspecific Competition”. The Encyclopedia of Earth. Accessed on 2016, April 4. Retrieved from http://www.eoearth.org/view/article/153875/