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Form and function

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  • 1. Biology I: Form and Function Mr. Nettles
  • 2. Today’s Agenda: Thurs. Dec. 1, 2011
    • Warm-Up: Finish up Summarizations (Due Today)
    • Lesson: Form and Function Lecture
  • 3. Today’s Objectives:
    • I will define: evolution, form, function, comparative anatomy, homologous structure, analogous structure, and vestigial structure.
    • I will recognize the relationship between form and function in living things.
  • 4. What is Evolution?
    • Evolution is the process by which species change over time.
  • 5. Form vs. Function
    • Form is the visual appearance and configuration of an organism.
    • Function is any type of life process carried out by an organism.
  • 6. Comparative Anatomy
    • Comparative Anatomy is a method by which scientist study the physical features and body parts of different animals to discover how they are related or similar.
  • 7. Homologous Structures
    • Homologous Structures are structures that have similar form but different functions.
          • These structures look alike in some ways, but they do different things.
  • 8. Homologous Structures
  • 9. Analogous Structures
    • Analogous Structures are structures that have similar function but different forms.
          • These structures do the same thing, but they look different.
  • 10. Analogous Structures
  • 11. Vestigial Structures
    • Vestigial Structures are structures that don’t play a role in the way an organism functions.
          • They are body parts that don’t really do much work in the body.
  • 12. Vestigial Structures

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