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17 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Artificial selection |
Intentional breeding of plants or animals |
Same as selective breeding |
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Biological species |
Group of individuals who can breed together, however they can not breed with other groups |
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Fitness |
An organisms ability to survive and reproduce in a particular environment |
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Genetic drift |
Variation in the relative frequency of different genotypes in a small population |
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Population |
All the inhabitants of a particular town, area or country |
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What adaptations do marine iguanas have that allow them to survive in the ocean compared to land iguanas? |
... |
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What did the Early Greeks hypothesize about prior to Darwin? |
Life began in water with simpler forms than more complex forms |
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What did Aristotle hypothesize about prior to Darwin? |
Life was fixed and didn't evolve |
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What did Lamarck hypothesize about prior to Darwin? |
Supported evolution but believed in acquired characteristics as mechanism for change |
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What are the major ideas of Darwin's Origin of Species |
Evidence of evolution How natural selection explains evolution |
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Explain Darwin's definition of natural selection |
Preservation of favored races in the struggle for life |
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Name and describe 5 evidences for evolution |
Fossils- leave imprints, preserve Biogeography- observations about distribution of different but related forms around the world Molecular biology- demonstrates universality of genetic code Comparitive anatomy- comparison of homologous structures Comparitive embryology- comparison of embryonic stages of different organisms |
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What evidence of evolution provides the strongest evidence? |
Fossils |
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List the 5 conditions of the Hardy-Weinberg Equilibrium Principle |
1. Very large population 2. Isolated population 3. Mutations do not alter gene pool 4. Mating is random 5. All individuals are equal in reproductive success (no natural selection) |
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What are the two random processes that generate variation? |
Sexual recombination and mutations |
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How do mutations affect evolution? |
A mutation can cause a new trait to appear, and if it's unfavorable, and the organism passes it on, that organism will die out |
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Name and describe the 3 modes of action for natural selection |
Stabilizing selection- narrows ranges in population variability toward some intermediate form Directional selection- moves the model form toward one of the extremes Disruptive selection- occurs when environmental factors are varied in a way that favors extremes over the intermediate form |
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