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Competition and . Natural Selection. King Penguins image courtesy of Life in the Fast Lane . Blobfish image courtesy of Biology: A Battle for Survival . Review . Biotic – Living or once was living (plants, dead organisms, animals) Abiotic – not living

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natural selection

Competition and

Natural Selection

King Penguins image courtesy of Life in the Fast Lane.

Blobfish image courtesy of Biology: A Battle for Survival.

review
Review

Biotic – Living or once was living

(plants, dead organisms, animals)

Abiotic – not living

(sun, water, soil, air)

natural selection1

image courtesy of MedioAmbiente.net

Natural Selection
  • Charles Darwin- studied finches (bird species) on the Galapagos islands.
    • Natural Selection
      • (“Survival of the fittest”)
    • a natural process resulting in the evolution of organisms best adapted to survive in their environment

image courtesy of University of Washington Libraries.

traits and adaptations

image courtesy of World of Reptiels.

Traits and Adaptations
  • Traits- characteristics that can be passed down from parent to offspring.
      • Examples: eye color, height, hunting instincts
  • Adaptations- characteristics that help an organism survive better in its environment; inherited OR learned
    • What adaptations does this tree frog have?
    • How is this anteater adapted for survival?

image courtesy of Mammals R Us.

slide5
What factors might these giraffes be in competition for?
  • What adaptations do these giraffes have?
  • Why didn’t the short-necked giraffe disappear from time period A to B?
  • How did natural selection change this population from time period A to C?
  • http://youtu.be/JiSuK_Dvdtg
  • Watch the video to help you answer the questions!
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