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BIO181 - Evolution

Terms in this set (7)

Closely related species share common ancestors. Species can and do change over time, sometimes resulting in new species
define evolution
Biogeography, Comparative anatomy and embryology, Fossils, Molecular biology
evidence for evolution
Study of geographic distribution of organisms (E.g., Darwin's finches)
Biogeography
Anatomical similarities between species provide evidence for evolution
Comparative Anatomy
A comparison of structure during development among different organisms
Comparative Embryology
Similar species have similar DNA and proteins.
Molecular Biology
Observation 1 - Populations have the potential to increase exponentially, Observation 2 - Populations are fairly constant in size, Observation 3 - Natural resources are limited, Deduction 1 - Only some organisms survive, Observation 4 - There are variations within individuals of a population, Deduction 2 - Individuals with favorable variations are more likely to survive and reproduce, Deduction 3 - Accumulation of variation over many generations is evolution
Theory of Natural Selection
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