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23 Cards in this Set
- Front
- Back
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Inheritance of acquired characteristics |
Book that detailed a mechanism for evolutionary change |
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Natural selection |
Characteristics of organisms were inherited, or passed from parent to offspring, more offspring are produced than are able to survive, resources for survival and reproduction are limited, competition for those resources, offspring vary among each other I regard to their characteristics and those variations are inherited |
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Variation |
Natural selection can only take place if there are differences among individuals in a population |
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Adaptation |
A heritable trait that aids the survival and reproduction of an organism in its present environment |
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Divergent evolution |
When two species evolve in different directions from a common point |
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Convergent evolution |
When similar structures arise through evolution independently in different species |
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Analogous structures |
Similar in function and appearance but do not share an origin in a common ancestor |
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Homologous structures |
Share similarities from a common ancestor with structure |
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Modern synthesis |
Coherent understanding of the relationship between natural selection and genetics |
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Microevolution |
Gradual change of a population over time |
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Macroevolution |
Rise of new species and higher taxonomic groups with widely divergent characters |
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Population genetics |
Biologists study of what happens to all the alleles in a population |
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Gene pool |
Sum of all the alleles in a population |
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Hardy-weinberg equilibrium |
Natural selection, mutation, genetic drift, and migration |
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Which scientific concept did Darwin and Wallace independently discover |
Natural selection |
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Which of the following lead to natural selection |
Seed location, competition for mates, better adaptability |
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What is the difference between micro and macro evolution |
Microevolution describes the evolution of populations, while macro evolution describes the emergence of new species over long periods of time |
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Population genetics |
Allele frequencies in a population change over time |
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Bottleneck effect |
A large portion of the genome suddenly being wiped out |
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Founder effect |
Genetic structures from a new population to a new location individuals are unlikely to be represented |
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Gene flow |
Flow of alleles in and out of a population resulting from the migration of individuals or gametes |
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Galapagos medium ground finches are found on other islands, which are separated by about 50 miles of ocean. Individuals fly or swim to other islands. This can alter the alleles frequencies of the population through which of the following |
Gene flow |
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In which of the following pairs do both evolutionary processes introduce new genetic variation into a population |
Mutation and gene flow |
