Chapter 15 Flashcards
who wrote “On the Origin of Species”
Charles Darwin
survival of the fittest
natural selection
make us less or more fit for the environment
adaptations
inherited ___ has to exist within the genes of every population according to Darwin
variation
film of carbon remain after other elements of an organism have decayed
imprints
created by the impression of a shape/rock
mold
sediment fills in a cavity left by a fossil
cast
organisms that are similar in structure had a ___ ___
common ancestor
structures that are embryologically similar and functionally different
homologous structures
structures that are embryologically different but function the same
analogous organs
structures that are seemingly functionless
vestigal structure