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12 Cards in this Set
- Front
- Back
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What are Darwin's five key insights?
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The nonconstancy of species.
The descent of related species from a common ancestor. Evolution is a gradual process (not always). The multiplication of diversity (One species can give rise to many new species that occupy different places [niches] in nature. Evolution occurs by natural selection. |
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What is a species?
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Species is a group whose members can reproduce with one another to produce fertile offspring.
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What is a population?
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Population is individuals of the same species that live in the same location.
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What is an allele?
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An allele is an alternative form of a gene.
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What is genotype?
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Genotype is the specific alleles possessed by an individual at a specific gene.
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What is phenotype?
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Phenotype is the physical and behavioral characteristics of an individual.
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What is the nonconstancy of species?
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The nonconstancy is one of Darwin's key insights and it says that populations can change over generations.
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What is the raw material of evolution?
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Genetic variation is the raw material of evolution.
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Which populations have evolved rapidly?
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bacteria, HIV
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When does the multiplication of diversity occur?
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The multiplication of diversity occurs when new species descend from a single ancestral species.
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How does evolution occur?
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Evolution occurs by natural selection.
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What are the three points of Darwin's view of natural selection?
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Some individuals have a preferred phenotype that increases reproduction in a specific environment.
Individuals with the preferred phenotype produce more offspring in this specific environment. The proportion of individuals with the preferred phenotype increases in future generations in this specific environment. |
