Exploring Life

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Exploring Life

• CHAPTER 1

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Properties of Life
Evolutionary adaptation
Order
Response to the environment
Energy processing
Regulation
Growth development
Reproduction
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Levels of Biological Organization
2. Ecosystems
3. Communities
4. Populations
5. Organisms
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Dilemma How to study Biology?

• Systems Biology
• seeks to understand the behavior of a whole
  system rather than its parts
• examples of systems cells, organisms, ecosystem
• breaking down a system into its parts disrupts
  the system and interferes with the meaningful
  understanding of its processes

• Reductionism
• seeks to find mechanisms of parts
• reduces complex systems to simpler components
  that are more manageable to study
• something as complex as an organism or cell
  cannot be analyzed without taking it apart

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Grouping Specieshorizontal dimension of
organizing life

• broadest units of classification Domains
  Kingdoms
• species are classified into 6 taxonomic groups
  within Kingdoms
• Phylum
• Class
• Order
• Family
• Genus
• species

most inclusive
least inclusive
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the 3 Domains their Kingdoms
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Classification within Kingdoms
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Evolution

• accounts for lifes dual nature of unity and
  diversity
• unity all species descended from a common
  ancestor
• diversity modifications that evolved as species
  branched from their common ancestors
• Darwin descent with modification

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Scientific Method
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Unifying Themes in Biology
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Major Themes in AP Biology

• Science as a Process
• Evolution
• Energy Transfer
• Continuity and Change
• Relationship of Structure to Function
• Regulation
• Interdependence in Nature
• Science, Technology, and Society