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Definition
| generation-to-generation change in the proportion of different inherited genes in a population that account for all of the changes that have transformed life over an immense time |
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Definition
| inherited characteristic that improves an organism's ability to survive and reproduce in a particular environment |
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| Descent with Modification |
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Definition
| process by which descendants of ancestral organisms spread into various habitats and accumulate adaptations to diverse ways of life |
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Definition
| process by which individuals with inherited characteristics well-suited to the environment leave more offspring than do other individuals |
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Definition
| preserved remains or marking left by an organism that lived in the past |
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Definition
| chronological collection of life's remains in sedimentary rock layers |
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Definition
| no longer existing as a living species on Earth |
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Definition
| similar structure found in more than one species that share a common ancestor |
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Term
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Definition
| remnant of a structure that may have had an important function in a species' ancestors, but has no clear function in the modern species |
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Definition
| group of individuals of the same species living in a particular area at the same time |
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Definition
| difference among members of a species |
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Definition
| selective breeding of domesticated plants and animals to produce offspring with desired genetic traits |
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Term
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Definition
| all of the alleles in all the individuals that make up a population |
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Definition
| evolution on the smallest scale—a generation-to-generation change in the frequencies of alleles within a population |
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Term
| Hardy-Weinberg Equilibrium |
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Definition
| condition that occurs when the frequency of alleles in a particular gene pool remain constant over time |
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Term
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Definition
| change in the gene pool of a population due to chance |
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Definition
| exchange of genes between populations |
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Term
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Definition
| contribution that an individual makes to the gene pool of the next generation compared to the contributions of other individuals |
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Term
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Definition
| medicine that kills or slows the growth of bacteria |
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