Biology ch. 1

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squirty99
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236557
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Biology ch. 1
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2013-09-23 18:19:22
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Biology
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Biology ch. 1
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  1. What are the goals of science?
    To observe and learn about the natural world.
  2. What is science?
    Learning about the natural world.
  3. observation
    act of noticing and describing events or processes in a careful, orderly way
  4. Scientific Methodology
    • 1. observing and asking questions
    • 2. making inferences and forming hypothesis
    • 3. conducting controlled experiments
    • 4. collecting and analyzing data
    • 5. drawing conclusions
  5. inference
    logical interpretation based on what scientists already know
  6. hypothesis
    scientific explanation for a set of observations that can be tested in ways that support or reject it
  7. controlled experiment
    all variables should be kept unchanged or controlled
  8. independent variable
    variable that is deliberately changed
  9. dependent variable
    variable that is observed and that changes in response to the independent variable
  10. control group
    exposed to the same conditions as the experimental group except for one independent variable
  11. data
    • detailed records of experimental observations
    • gathering info
  12. scientific attitudes
    • curiosity
    • skepticism
    • open mindedness
    • creativity
  13. Peer review
    publishing peer reviewed articles in scientific journals allow researchers to share new ideas and test and evaluate each others work.
  14. theory
    well-tested explanation that unifies broad range of observations and hypotheses that enables scientists to make accurate predictions about new situations
  15. Bias
    Particular preference or point of view that is personal, rather than scientific
  16. Biology
    Study of life
  17. Living things
    • Made up of basic units called cells
    • are based on a universal genetic code,
    • obtain and use materials and energy,
    • grow and develop,
    • reproduce,
    • respond to their environment,
    • maintain a stable internal environment,
    • and change over time
  18. DNA
    Genetic code
  19. Stimulus
    Signal two it's an organism responds
  20. Sexual reproduction
    Cells from two parents unite to form the first south of the new organism
  21. Asexual reproduction
    A single organism produces offspring identical to itself
  22. Homeostasis
    Organisms expend energy to keep conditions inside their cells with in certain limits
  23. Metabolism
    The combination of chemical reactions in which an organism builds up for break down materials
  24. Big ideas in biology
    • Cellular basis of life
    • Information and heredity
    • Matter and energy
    • Growth, development, and reproduction
    • Homeostasis
    • Evolution
    • Structure and function
    • Unity and diversity of life
    • Interdependence in nature
    • Science as a way of knowing
  25. Biosphere
    All forms of life on earth are connected into the "living planet "
  26. Scientific measurement
    Metric system when collecting data and performing experiments

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