humans have modified species
through selection and breeding.
the sequence in which fossils
appear within strata (layers) of sedimentary rocks.
the geographic distribution of
species, suggested to Darwin that organisms
evolve from common ancestors.
is the comparison of body structures in different species,
– was extensively cited by Darwin, and
– illustrates that evolution is a remodeling process.
the similarity in characteristics that result
from common ancestry.
have different functions but
are structurally similar because of common ancestry.
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