science

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Author:
Anonymous
ID:
14163
Filename:
science
Updated:
2010-04-12 20:22:13
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sci
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Description:
Science notes for the test
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  1. What is a desease?
    Disrupts the normal body function of the organism.
  2. Describe the two types of deseases.
    Noninfectious-can't spread from person to person

    Infectious-passed from one living thing to another
  3. What is pathogens?
    A virus or microorganism that cause a desease.
  4. What are viruses?
    • Depend on living things to reproduce
    • Vary in shape and size
  5. What are the pathways to pathogens?
    • Air-sneezing
    • contaminated objects-doorknobs
    • Person to person-shaking hands
    • Animal-ringworm
    • Food & water
  6. How can you prevent pathogens?
    • Cleanliness
    • Pasteurization
    • Vaccines
    • Antibiotics
  7. What is classification?
    Putting thing into groups based on similarities.
  8. What is taxonomy?
    The science of classifying, naming, and describing living things.
  9. What are the three questions for classifying organisms?
    • How many species
    • Defining characteristics
    • Relationship between species
  10. How did Linnaeus classify organisms in the past? How do we classify organisms now?
    Classify based on shape and stucture.

    • An eight level system
    • Based on shared characteristics
  11. What are the eight levels of classification?
    • Kingdom
    • Phylum
    • Class
    • Order
    • Family
    • Genus
    • Species
  12. How many parts are in the scientific name? What are they?
    • 2 parts
    • Genus and specific
  13. What is the Dichotomous key?
    Tools for identifying organisms.

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