Unit 9 Vocabulary Goins

random change in allele frequencies that occurs in small populations

• genetic drift

• genetic equilibrium

• gene pool

situation in which allele frequencies remain constant

• genetic drive

• genetic equilibrium

• gene pool

combined genetic information of all the members of a particular population

• genetic drift

• genetic equilibrium

• gene pool

form of reproductive in which two populations reproduce at different times

• fossil record

• reproductive isolation

• temporal isolation

separation of species or populations so that they cannot interbreed and produce fertile offspring

• temporal isolation

• reproductive isolation

• fossil record

information about past life, including the structure of organisms, what they ate, what ate them , in what environment they lived, and the order in which they lived

• fossil record

• reproductive isolation

• temporal isolation

process by which unrelated organisms independently evolve similarities when adapting to similar environments

• natural selection

• microevolution

• convergent evolution

process by which individuals that are better suited to their environment survive and reproduce most successfully

• index fossil

• natural selection

• microevolution

evolution involving small-scale changes (within the species) occurring over a short period of time that results in the formation of a new species

• microevolution

• index fossil

• natural selection

distinctive fossil used to compare the relative ages of fossils

• extinct

• fossil record

• index fossil