vestigial - structure that no longer has a function but ancestors used them, homologous - structure that is similar to another organism but used differently, Beagle - the name of Charles Darwin's ship, Galapagos - the islands which Darwin visited and that helped him come up with his theory, Natural Selection - the name of Charles Darwin's theory, evolution - a population changes over time, adaptation - a physical or behavioral trait that allows an organism to better survive, Homo sapiens - the species that we belong to, Lucy - the nickname for Australopithecus afarensis, the first hominid to walk upright, fittest - When organisms best suited are more likely to survive, reproduce and pass on traits. This is known as "Survival of the_____", fossil - A dinosaur bone shows how a creature changed changed over time. What type of evolutionary clue is this?, variation - The different colors of a dog is an example of a, ancestor - Humans and chimpanzees share a common __________., food - Finches in the Galapagos had different beak types because of the _________ available on the island., water - The fossil record shows that life started in , DNA - The more closely related a species is, the more of this genetic material they will share., mutation - These mistakes or changes in DNA can help with evolution., LaMarck - He believed that giraffes stretching out their necks would result in offspring with longer necks.,

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