all the time that has passed since earth formed
fossil record
plate tectonics
a table that divides earth's history into time periods
biogeography
the study of the geographical distribution of fossils and living
organisms
continental drift
a theory that the major landmasses of the earth move
homologous structure
geologic time
the history of life on earth, based on fossils that have been
discovered
geologic time scale
the body parts that are similar in related animals
a theory that the earth's surface is made of large sections of crust
that move