194x Filetype PPTX File size 1.22 MB Source: kawameeh.twpunionschools.org
Misconceptions about Evolution Ted Ed Evolution does not tell us about how life first appeared on Earth Individuals do not evolve. Only populations can evolve. Not all changes are “good” Changes that happen to a person in their lifetime do not always get passed on to their children Evolution is not a ladder working towards a better species Darwin’s Theory of Evolution Evolution, or change over time, is the process by which modern organisms have descended from ancient organisms. Natural Selection Organisms that are best adapted to an environment survive and reproduce more than others. Humans select traits for dogs, pigeons and other animals when they breed them (we call this ARTIFICIAL SELECTION). Bred dogs came from a single original species Who selects the traits for wild plans & animals? NOBODY!! There is no agent involved in natural selection. Natural selection is a process of elimination INDIVIDUALS THAT HAVE TRAITS THAT ARE BEST ADAPTED FOR THE CURRENT ENVIRONMENT ARE THE ONES THAT SURVIVE TO BREED AND PASS ON THEIR GENES TO THE NEXT GENERATION. Organisms not possessing the beneficial traits either die or don’t have as many offspring. Natural Selection is Survival of the fittest
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