Bio Exam 1 Ch 1

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jax12
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36240
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Bio Exam 1 Ch 1
Updated:
2010-09-21 03:38:21
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Bio Exam
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Bio Exam 1 Ch 1
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  1. biology
    -the science of life
  2. observation
    • - a statement from which evolves an inquiry
    • ex: flies are attracted to spoiled meat
  3. hypothesis
    • -a proposed explanation for an observation or inquiry
    • ex: the flies produce the maggots

    - an informed explanation of what might be true
  4. experiment
    - produce results that either support or refute the hypothesis
  5. conclusions
    • - drawn from experimental results
    • - say whether the hypothesis was true or not
  6. Fransesco Redi's experiements
    • - 17th century
    • - flies and rotting meat
    • - found out flies produce the maggots in spoiled meat
    • -carefully recorded experimental procedure and results
  7. evidence
    - observations that provide proof for an assumption or hypothesis
  8. fact
    - a hypothesis so supported by evidence we assume its true and act as if its true
  9. theory
    • - a mature body of statements that are known to be general laws, principles or causes of some natural phenomenon
    • - logical, tested, well supported explanations for a variety of facts
  10. scientific method
    - observation, question, hypothesis, experiment, results, conclusion, theory
  11. pandemic
    - an epidemic that's worldwide
  12. HIV
    • - kills killer cells that normally take out viruses and bacteria
    • - once no immune cells are left a random virus can kill the person
  13. HIV came from
    • - chimps
    • - fastest evolving thing on the planet
  14. Alexander Flemming
    • - accidental discovery of penicillin
    • - Scotish bacteriologist
    • - 1920's
    • - batch of mold called Penicillium
    • - first antibiotic
  15. serendipity
    - making useful discoveries by accident
  16. ring of inhibition
    - diameter around the drug shows how effective it is in a culture
  17. cell
    - smallest unit of life
  18. tissues
    - made of up cells of similar types
  19. organs
    - made of combined tissues
  20. organisms
    - formed by collection of organs
  21. population
    - group of organisms
  22. communities
    - groups of populations
  23. ecosystems
    - organisms and non-living environment of an area
  24. biosphere
    - part of the earth inhabited by living organisms

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