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Bio EOCT Domain V
Review of EOCT content for evolution
| Question | Answer |
|---|---|
| scientist who believed organisms evolved through acquired traits | Lamarck |
| He wrote Principles of Geology and said plants and animals had arisen, developed vairations and then became extinct | Lyell |
| He wrote An essay on the principles of populations and said species outgrow the food supply, compete for resources, and struggle for survival | Malthus |
| He sailed to the Galapagos Islands on the HMS Beagle and came up with the theory of natural selection | Darwin |
| traits that make organisms better suited to the environment | adaptations |
| changes in a population that occur when organisms with favorable variations for that particular environment survive, reproduce, and pass these variations on to the next generation. | natural selection |
| when species become separated and can no longer interbreed | reproductive isolation |
| use of mathematical descriptions of genetic phenomena to help trace evolutionary trends within populations | population genetics |
| Darwin counted over a dozen different species of finches that he believed evolved from a single founding species. This is an example of ____________ ____________. | adaptive radiation |
| This is where unrelated species may independently evolve superficial similarities because of their adaptations to similar environments. | convergent evolution |
| the variety of organisms, their genetic information, and the communities in which they live. | biodiversity |
| proteins that have changed very slowly and are shared by many species. Used to predict when how long ago organisms share a common ancestor. | molecular clocks |
| the evolution of a new species | speciation |
| when physical barriers cause populations to divide and prevent mating of individuals | geographic isolation |
| evolution that occurs over a long period of time when adaptive changes accumulate slowly and steadily over time in a population | gradualism |
| speciation that occurs quickly in rapid bursts, with long periods of stability | punctuated equilibrium |
| the remains of an organism left in rock, usually the bones and teeth | fossils |
| used to determine the age of fossils by using half-life of elements, usually Carbon 14 | radioisotope dating |
| recognizing distinct fossils in different layers of rock | relative dating |
| a description of the lines of descent (how species are interrelated) for plants and animals | phylogeny |
| the permanent loss of a species | extinction |
| reproductive efficiency of various individuals or genotypes in a population.; depends on the probability that the individual will survive and reproduce successfully | fitness |
| type of selection that favors the average in the population | stabilizing |
| type of selection that favors one variety over all the others | directional |
| type of selection when intermediates disappear and the two extreme varieties are favored | disruptive |
| structures in different species that are similar Example- seal's front flipper, horse's foreleg and human arm | homologous structures |
| structures that no longer have a function in an organism | vestigial organs |
| all of the alleles present in a population for a particular trait | gene pool |
Created by:
elaineconklin
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