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14 Cards in this Set
- Front
- Back
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Darwin's observations: |
- think turtles - birds - galapagos islands - fossils and erosion - voyage and boat - geography - weather |
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What is the difference between natural and artificial selection? |
Natural: the process whereby organisms better adapted to their environment tend to survive and produce more offspring Artificial: intentional reproduction of individuals in a population that have desirable traits |
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Why do individuals with the best adaptation survive? |
survival of the fittest: individuals that are best equipped to survive and reproduce win |
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Difference between Homologous and Analogous structures |
Homologous: same structure different function Analogous: different structure same function |
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What is embryology |
The appearance of the organism while still an embryo and comparing it's features to those of other organisms |
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Vestigial structures |
feature that no longer seems to have a purpose in the current form of an organism of the given species (examined in bones) Ex: appendix |
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What is an adaptation? |
process of change by which an organism or species becomes better suited to its environment |
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How are members of a population similar? |
Same species |
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How was the fossil record important to Darwin? |
provide direct evidence of evolution and detailed information on the ancestry of organisms |
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What is a "gene pool" |
sum of a population's genetic material at a given time |
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What do all frequencies of an allele equal |
1 |
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What is the genetic outcome of sexual reproduction? |
Generates genetic variation |
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Inheritance of natural variation |
Occur when organisms that aquire natural variation, pass on these traits to offspring |
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Inheritance of acquired characteristics |
Organisms pass on favorable characteristics to offspring |
