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5 Cards in this Set
- Front
- Back
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Darwin made two major points in The Origin of Species.he basic idea of natural selection is that a population can change over generations if individuals that possess certain heritable traits leave more offspring than other individuals. The result of natural selection is evolutionary adaptation.
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First, he presented evidence that the many species of organisms presently inhabiting Earth are descendants of ancestral species that were different from the modern species. Second, he proposed a mechanism for this evolutionary process, which he termed natural selection.
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Natural Selection
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he basic idea of natural selection is that a population can change over generations if individuals that possess certain heritable traits leave more offspring than other individuals. The result of natural selection is evolutionary adaptation.
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Evolutionary Adapation
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an accumulation of inherited characteristics that enhance organisms′ ability to survive and reproduce in specific environments.
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Modern Evolution
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as a change over time in the genetic composition of a population. Thus we can also use the term evolution on a grand scale to mean the gradual appearance of all of biological diversity, from the earliest microbes to the enormous variety of organisms alive today.
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Taxonomy
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the branch of biology concerned with naming and classifying organisms
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