Who is this guy? Why are we talking about him today?

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Who is this guy? Why are we talking about him today?. Adaptation and Survival What does this have to do with our DNA?. Charles Darwin - a scientist that proposed the theory of Survival of the Fittest - PowerPoint PPT Presentation

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  • Who is this guy? Why are we talking about him today?

  • Adaptation and SurvivalWhat does this have to do with our DNA?Charles Darwin- a scientist that proposed the theory of Survival of the Fittest- This is the idea that individuals with more successful traits would be more likely to reproduce and pass those traits to their offspring

  • Plant and Animal SurvivalFor animals, survival means finding food, escaping predators, and adjusting to environmental changesFor plants, survival means getting enough water, nutrients, and sunlight

    SOME ORGANISMS ARE BETTER EQUIPPED FOR SURVIVAL BECAUSE THEY HAVE TRAITS THAT IMPROVE AN ORGANISMS CHANCE OF SURVIVALThis is called their adaptations

  • How do adaptations help an organism?It makes an organism moreFITThis characteristic can then be passed on to its OFFSPRING and then the offspring will be better FIT for their environment and now can have more OFFSPRING with the same characteristicsBUT THOSE THAT ARE NOT FIT DIE AND WONT HAVE OFFSPRINGThis is called NATURAL SELECTION

  • Prey AdaptationsHow do organisms avoid being killed by such effective predators?DEFENSE STRATEGIESMimicry - when one organism imitates another organism for an advantage

    Pterophylla camellifoliaKatydid

  • 2. Protective Covering - armor that protects the organism

    Pangolins

  • 3. Camouflageto blend in with surroundings

    Paradoxophyla palmata, a narrow-headed frog native to Madagascar. The frog's brown and yellow coloring, as well as its rough texture, allow it to blend in with the mud and tree trunks in its environment

  • 4. Warning Colorused to warn predators not to eat it

    MantellasBy having the bright colors of the toxic species, the frogs are avoided by predators

  • Predator Adaptations

  • Through the process of natural selection, animals and plants have evolved on EarthWhat does evolved (EVOLUTION) mean?- it means to change over time

    There is a difference between variation vs. evolutionary changeEx: Giraffes long neckEvolution begins with variationMeans that sometimes, by accident an animal is born that issomehow different from the others of its species and this trait allowed the animal to be better fit to its environment

  • Since the trait made the animal more fit it will have more offsprings meaning their genes will be passed on and stay within the population The others that do not have that trait, will most likely not survive no or fewer offspring

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