Bio

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Author:
Anonymous
ID:
36642
Filename:
Bio
Updated:
2010-09-22 17:49:30
Tags:
Biology
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Description:
Human Biology
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  1. Science
    • Study of natural world
    • chemistry
    • - physics
    • - ecology
    • - geology
    • - biology
    • Utilizes a Process
    • - Scientific Method

  2. Scientific Method
    • -obsevartion
    • -problem statment
    • -- how, what, why
    • - hypothesis
    • - test (experiment)
    • -analysis
    • -conclusion
  3. Experiments
    • Control Group
    • - nothing changed
    • Experimental Group
    • - one thing changed
    • - experimental value
    • Problems
    • - sample size
    • - sample composition
    • - human studies
  4. Unknown Disease
    • observation
    • –abnormal number of people with
    • arthritis
    • problem
    • –what is the cause of the
    • arthritis?
    • other observations
    • –most victims heavily wooded areas
    • –disease not contagious
    • –summer symptoms
    • –reports of bulls-eye rash
    • hypothesis
    • –pathogen spread by insect or tick

  5. Lemon Ant Tree
    • A.No seeds germinate in test plot
    • B.Use plant extract on seeds in plot
    • C.Why are no plants growing near tree?
    • D.No plants grow near the tree
    • E.Maybe something in plant tissues inhibits
    • seed germination
    • F.Plant produces substance toxic to seeds
  6. Theory
    • Conceptual theme supported by lots of
    • observations and data
    • –much more than a guess
    • Biological theories
    • –cell,biogenesis, gene, evolution
    • Hypothesis ---> theory ---> law
  7. Testable?
    • How best to live life?
    • What is good art?
    • Who’s the greatest football player of all
    • time?
  8. Biological Hierarchy
    • very small to very large
    • atoms, molecules, cells, --->
    • tissues, organs, organ systems, ---->
    • organisms, populations, --->
    • communities, ecosystems

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