- This theory was created by Charles Darwin
- Key mechanism of evolution
- Acts on phenotype of an organism
Summary:
Natural Selection is a theory that states an organism overtime develops characteristics and features that lets it's species better survive in the environment. An example of natural selection would be; say there is a group of red bugs and then a group of purple bugs, and the red bugs are being eaten by the birds but the purple bugs are not. The purple bugs would then become more populated and would take over because that species of bug has better adapted to the environment they are in. Something that surprised me when learning about this is that, this happens everywhere within humans, ways of life etc.. we are constantly changing and evolving.. We are finding new ways to make things better and easier for us. I enjoyed learning about this because it's interesting to see how far things in life have came, and how we naturally overcome obstacles over a period of time.
Citation: Paul, Kerris. "Darwin, Evolution, & Natural Selection". Khan Academy, 2019, https://www.khanacademy.org/science/biology/her/evolution-and-natural-selection/a/darwin-evolution-natural-selection.
(Shelby Goff)
Is it possible for natural selection to totally change the way humans look in years to come?
ReplyDeleteyes, it's possible that natural selection can change the way we look. say if all humans had 4 fingers, but humans with 5 fingers were stronger and could survive longer. eventually all humans would have 5 fingers and none would have 4.. if that makes sense.
DeleteDoes it affect species differently, for example mammals or reptiles?
ReplyDeleteNo, it affects them the same. The more elite organism of the species will survive. The one better cut out for the environment has a natural advantage so therefore will last longer.
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