5.03 Evolution
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5.03 Evolution

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5.03 Evolution 5.03 Evolution Presentation Transcript

  • Think about this question: How have phones devices changed?
  • Think about this question: How have personal musical devices changed?
  • Word 1. Evolution Definition Picture change in the hereditary features of a species over time - due to mutations in their DNA
  • Horse Evolution
  • Whale Evolution
  • Word 2. Charles Darwin Definition Theory of Natural Selection about evolution Picture
  • Darwin’s Observations
  • Darwin collected many plants and animals and observed many new species in the Galapagos Islands. Species – group of organisms that can reproduce successfully Many different species of finches, but they lived so close?
  • Word 3. Species Definition Group of organisms that can mate with one another to produce fertile offspring Picture
  • Word 4. Adaptation Definition A characteristic that helps an organism survive and reproduce in its environment Examples: polar bear fur, bird wings Picture
  • NOTE! • Adaptations are caused by mutations in DNA. An organism cannot CHOOSE to have an adaptation and then pass it on to their children!!
  • Darwin’s finches: adaptations: - bird beak shapes are examples of adaptations
  • Questions 1. What is evolution? 2. What is a species? 3. Some insects look just like sticks. How could this be an advantage to the insects? 4. What are some adaptations that a shark has?