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23 Cards in this Set
- Front
- Back
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List the steps of scientific method
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Observation
Hypothesis Method Data Analysis Conclusion |
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Explain the difference between dependent and independent variables.
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Independent is changed by the scientist.
Dependent is changed as a result of the independent variable. |
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Explain the difference between qualititative and quantitative date.
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Qualitative - can be observed
Quantitative - can be measured |
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What is biology?
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study of all living things
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What is the rule for determining the TOTAL magnification of the microscope?
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eye piece x objective = total magnification
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Define resolution
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a measure of the ability of a lens to form a clear image
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Magnification
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how many times you increase the size of your image
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What is the relationship between magnification and resolution?
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the higher the magnification, the lower the resolution
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What is the microscope used for?
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to see things you can't see with the naked eye
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What is the magnification of the eyepiece?
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10 x
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What is the magnification of the scanning power?
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4 x
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What is the magnification of the low power?
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10 x
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What is the magnification of the high power?
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40 x
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Define the 7 characteristics of life
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1.Living things are made up of cells with DNA
2.Reproduce 3. Must grow, develop and age 4. Obtain and use energy from environment 5. Respond to the environment 6. Maintain homeostasis 7. Evolve |
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Unicellular
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only one cell
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Multi cellular
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more than one cell
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Colonial
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unicellular, live in a group
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Sexual reproduction
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2 cells from different individuals combining to form the first cells of a new organism
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Asexual reproduction
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all or part of the organism is used to make a new organism
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autotroph
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organism that produces its own food
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heterotroph
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organism that must eat its own food
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Homeostasis
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response to the environment that keep conditions suitable to life
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What is science?
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using evidence to learn about the natural world
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