Evolution/History Word Scramble
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Question | Answer |
artificial selection | selection by humans for breeding of useful traits from the natural variation among different organisms |
fitness | ability of an organism to survive and reproduce in its environment |
adaptation | inherited characteristic that increases an organism’s chance of survival |
survival of the fittest | process by which individuals that are better suited to their environment survive and reproduce most successfully |
natural selection | process by which individuals that are better suited to their environment survive and reproduce most successfully |
genetic drift | random change in allele frequencies that occurs in small populations |
reproductive isolation | separation of species or populations so they cannot interbreed and produce fertile offspring |
behavioral isolation | form of reproductive isolation in which two populations have differences in courtship rituals or other types of behavior that prevent them from interbreeding |
geographic isolation | form of reproductive isolation in which two populations are separated physically by geographic barriers such as rivers, mountains, or stretches of water |
temporal isolation | form of reproductive isolation in which two populations reproduce at different times |
relative dative | method of determining the age of a fossil by comparing its placement with that of fossils in other layers of rock |
index fossil | distinctive fossil used to compare the relative ages of fossils |
radioactive dating | technique in which scientists calculate the age of a sample based upon the amount of remaining isotopes it contains |
homologous structure | structures that have different mature forms in different organisms but develop from the same embryonic tissues |
vestigial organ | organ that serves no useful function in an organism |
gene pool | combined genetic information of all the members of a particular population |
relative frequency | number of times an allele occurs in a gene pool compared with the number of times other alleles occur |
Created by:
Batterbee
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