Northern Spotted Owl Mexican Spotted Ow 21. According to the above image, the Northern Spotted Owl and the Mexican Spotted Owl have speciated over time by differentiating in isolated populations. What mode of speciation is best described by this system? A) allopatric B) parapatric C) sympatric D) laziopatric (It is hard not to conclude that owls are lazy if they couldn't simply fly over the Rocky Mountains.)

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Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.