Biology Concepts and Assessment

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Definition of Evolution

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Evolution is the change in genetic composition of a population over time.

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Definition of Population

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A group of interbreeding individuals of the same species living in the same area at the same time.

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Fundamental category of the three types of change

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Genetic change.

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Theory

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A well-substantiated explanation of an aspect of the natural world.

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Role of science in ethical issues

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Science informs ethical decisions but does not make them. Ethical choices involve values and cultural beliefs beyond empirical data.

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Dobzhansky's view on science vs belief

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Science and religion are compatible; “Nothing in biology makes sense except in the light of evolution.”

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Meaning of Dobzhansky’s quote

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Evolution is the framework that unifies all biological knowledge; without it, biology doesn’t make sense.

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Mesozoic era

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250–65 Mya: Dinosaurs, birds, flowers

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Geological Time Scale: Hadean

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4500 Mya: Formation of Earth

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Geological Time Scale: Paleozoic

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540–250 Mya: Cambrian explosion, 1st land plants, fish