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Form and function
 

Form and function

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    Form and function Form and function Presentation Transcript

    • Biology I: Form and Function Mr. Nettles
    • Today’s Agenda: Thurs. Dec. 1, 2011
      • Warm-Up: Finish up Summarizations (Due Today)
      • Lesson: Form and Function Lecture
    • 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.
    • What is Evolution?
      • Evolution is the process by which species change over time.
    • 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.
    • 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.
    • 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.
    • Homologous Structures
    • Analogous Structures
      • Analogous Structures are structures that have similar function but different forms.
            • These structures do the same thing, but they look different.
    • Analogous Structures
    • 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.
    • Vestigial Structures