Evolution - A process that causes changes in a population's genetic makeup over many generations., Microevolution - Changes in allele frequencies in a population over time, Macroevolution - Shows huge changes at the species level, and the evolution of a new species, Fossil records - They can be organism remains such as bones, shells, teeth, and feces embedded in rocks, peat, resin, and ice. They are the remains of organisms that once lived and were preserved by natural processes or catastrophic events., Paleontologist - They are the experts in the study of fossils, Homologous features - Are those from various species that have a similar internal framework, location, and embryonic development., Analogous structures - Structures that perform similar functions but have different origins., Theory of needs - Asserts that organisms change in reaction to their surroundings. Their ability to survive aided them in developing qualities required for adaptation in a specific environment, such as larger development of an organ or a component through increasing use, which might be passed down to their children., Charles Darwin - A british biologist who proposed the Natural Selection hypothesis of biological evolution, Natural Selection - The process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.,

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