Scientists | Natural Selection | Evidence for Evolution | Speciation | Patterns of evolution |
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Who is the scientist that proposed the first mechanisms of evolution?
Jean-Baptiste Lamarck
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What is the theory of natural selection?
Over time the population changes as advantageous heritable characteristics become more common generation after generation
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What are the three forms of evidence that convinced Darwin of evolution?
Biogeography
Anatomical Features Embryology |
What is speciation?
The formation of a new species
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What is coevolution?
The process in which one species evolves in response to the evolution of another species
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What were the two first proposed mechanisms of evolution?
1. Theory of use and disuse
2. Theory of the inheritance of acquired characteristics |
What Herbert Spencer used to describe natural selection?
Survival of the fittest
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What feature is a structure with a common evolutionary origin that may serve different functions in modern species?
Homologous features
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What is the biological species concept?
Species are groups of individuals that can mate and produce fertile offspring under normal circumstances.
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What is convergent evolution?
The evolution of similar traits in very distantly related species
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Who is the father of Evolution?
Charles Darwin
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What are the types of selection?
Directional Selection
Stabilizing Selection Disruptive Selection Sexual Selection |
What are features that no longer serve the function they do in similar species?
Vestigial features
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What are the 2 types of isolating mechanisms?
Pre-zygotic and post-zygotic
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What type of evolution is seen in homologous structures?
Divergent Evolution
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Name two scientists who published in the 18th century?
George-louis Buffon
Carl Linnaeus Erasmus Darwin |
What is genetic drift, and what are the two types/effects?
Genetic drift: changes to allele frequency as a result of chance
Genetic bottle neck - dramatic often temporary, reduction in population size, usually resulting in significant genetic drift Founder effect - genetic drift that results when a smaller number of individuals separate from their original population and establish a new population |
What specific fossils show a change over time, proving evolution occurred?
Transitional Forms
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What are the types of speciation?
Allopatric speciation & sympatric speciation
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What type of evolution is seen in analogous structures?
Convergent Evolution
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What scientist proposed the theory of Uniformitarianism?
Charles Lyell
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What are the Hardy-Weinburg principle and the five conditions that must be met for no evolution?
H-W: In large populations in which only random chance is at work, allele frequencies are expected to remain constant from generation to generation.
1. No selection 2. No mutation 3. No migration 4. Large population 5. Random mating |
What are the four observations Darwin made while on the Galapagos islands?
1. Many species of plants, birds, insects, and in some cases, reptiles
2. No native amphibians and very few land mammals 3. Many unique species found nowhere else on earth 4. Unique species most closely resemble species on the nearest continental land mass |
If humans build a dual highway (2- 2-lane highways) what type of mechanism and type of speciation is used?
Ecological (Habitat) isolation - Pre-zygotic Mechanism
Allopatric speciation |
Rodents are an example of what type of evolution?
Divergent evolution
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