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20 Cards in this Set
- Front
- Back
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Evolution
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change over time
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Biological Evolution
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change in species from previous existing species
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Superposition
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(Relative Dating)
using rock layers to determine relative ages |
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Radioactive dating
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use of radioactive elements to determine the age
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Atomic number
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number of protons
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Mass number
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number of neutrons and protons
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Isotopes
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element with different atomic mass
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Parent
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unstable isotopes
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Daughter
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stable isotopes
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half life
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amount of time it takes for the parent to decay in half
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Homologous structures
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same from, different function
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Vestigal structure
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structure no longer used
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Analogous structure
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same function, different form
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Geographic Isolation
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changes have occured to adapt to the environment
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Natural Selection
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organisms with traits well suited to an environment survive and reproduce; strong survive; survival of the fittest
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Darwin's Theories 1
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Variation exist among individuals within a species and between spieces
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Darwin's Theories 2
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Organisms produce more offspring than the environment can support
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Darwin's Theories 3
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Competition exists among individuals
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Darwin's Theories 4
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The organisms whose variation best fit them to the environment are the ones who are most likely to survive and pass on their genetic information
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Quote
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Individuals do not evolve
Populations evolve |
