15.1, 2, 3 bio Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
evolution | a heritable change in the characteristics within a population from one generation to the next; the development of new types of organisms over time |
strata | layers of rock |
natural selection | the process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals do; a theory to explain the mechanism of evolution |
adaptation | the process of becoming adapted to an environment; an anatomical, physiological, or behavioral change that improves a population's ability to survive |
fitness | a measurement of the ability of a species to respond to the pressures of natural selection; the ability of individuals to survive to propagate their genes |
fossil | the trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock |
superposition | a principle that states that younger rocks lie above older rocks if the layers have not been disturbed |
relative age | the age of an object in relation to the ages of other objects |
absolute age | the numeric age of an object or event, often stated in years before the present, as established by an absolute-dating process, such as radiometric dating |
biogeography | the study of the geographical distribution of living organisms and fossils on earth |
homologous structure | anatomical structures that share a common ancestry |
analogous structure | in comparisons of different organisms, describes features that are similar in function and appearance but not in structure or origin |
vestigial structure | a structure in an organism that is reduced in size and function and that may have been complete and functional in the organisms ancestors |
phylogeny | the evolutionary history of a species or taxonomic group |
convergent evolution | the process by which unrelated species become more similar as they adapt to the same kind of environment |
divergent evolution | the process by which two or more related but reproductively isolated populations become more and more dissimilar |
adaptive radiation | an evolutionary pattern in which many species evolve from a single ancestral species |
artificial selection | the selective breeding or organisms (by humans) for specific desirable characteristics |
coevolution | the evolution of two or more species that is due to mutual influence, often in a way that makes the relationship more mutually beneficial |
Created by:
ChambersA20
Popular Biology sets