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What is life? PowerPoint Presentation
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What is life?

What is life?

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What is life?

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Presentation Transcript

  1. What is life? How do you study human life?

  2. What are the characteristics of life?

  3. How do living things maintain themselves? • What is homeostasis? • Some examples of homeostasis • Body temperature • Fluid levels • Blood pressure

  4. The body is highly organized

  5. Biological classification Domains and kingdoms- the biggest groups Taxonomy- the science of classification

  6. The Scientific Method

  7. Once you have formed your hypothesis-then what? • How do you test a hypothesis? • Controlled experiment (variables) • Population study • A variation on a population study is a clinical trial • Toxicology studies in animals • I. Is it safe? • II. Is it effective in a small target population? • III. Is it effective in a large population? • IV. Does it have other uses? • Research (what have other people done?)

  8. You use the scientific method in your life all the time!

  9. Hypothesis and theory • Hypothesis is an educated guess • Theory-hypothesis that has withstood testing • Evolution • Cell theory • Germ theory • Chemiosmotic theory

  10. “Science (technology) is neither good nor bad; it’s how it is used” • ELSI (Ethical, Legal, and Social Implications) • Program funded by DOE and NIH as part of HGP (3-5% of total budget) • http://www.ornl.gov/sci/techresources/Human_Genome/elsi/elsi.shtml