Process of Evolution Vocabulary
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14 Terms
Microevolution
Change in genetic composition of populations over time
Macroevolution
Underlying changes (microevolution) drive diversification of life over time
Lamarck
inheritance of acquired characteristics
Principles of geology
earth infinitely old forces today responsible for past events
An Essay on Principle of Population
populations have potential for rapid increase, kept in check by limited resources
Survival of the Fittest
individuals that fit env. better more likely to survive and reproduce
HMS Beagle
set sail in 1831
returned 1836
developed theory for evolutionary change
studied finch birds
Theory for Evolutionary Change
Species Change over Time
Divergent species share common ancestor
Mechanism that produces change is natural selection
Descent with Modification
divergent species share common ancestor
Darwin’s Three Conditions
A population must have variation in a trait
Variation must be heritable
Some variants must be better able to survive and reproduce than others
If all 3 are true, then there will be an _________________ in the frequency of that trait in the next gen
increase
Who is credited for the idea of natural selection
Wallace and Darwin
