adaptation, Helps an organism survive. Ex=thick fur!, evolution, Populations accumulate inherited changes, fossil, remains of a once living organism, vestigial structure, once useful anatomical structure. TAIL BONE!, overproduction, having more offspring than will survive, speciaiton, Alligators and crocodiles , variation, organisms are a little bit different from each other, beak shape, this decided what food source the finches would eat, acid, a PH from 0 - 6.9, base , a PH from 7.1 - 14, absolute dating, measuring unstable atoms, extinct, species that has died out completely, plate tectonics, Pangea, evidence for evolution, Mesozoic era, age of reptiles!, Precambrian , beginning of Earth.

Evolution!

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