Evolution Unit Review

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What is evolution?

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Evolution is the process by which different kinds of living organisms develop and diversify from earlier forms during the history of the earth.

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What is natural selection?

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Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.

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What is a phylogenetic tree?

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A phylogenetic tree is a diagram that represents the evolutionary relationships among various biological species based on similarities and differences in their physical or genetic characteristics.

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What is punctuated equilibrium?

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Punctuated equilibrium is a theory in evolutionary biology that proposes that species evolve during short periods of rapid change, separated by long periods of stability.

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What are prokaryotic cells?

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Prokaryotic cells are simple, single-celled organisms that lack a nucleus and other membrane-bound organelles, such as bacteria.

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What are eukaryotic cells?

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Eukaryotic cells are complex cells that contain a nucleus and other organelles, and can be single-celled or multicellular organisms.

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What is the significance of genetic variation in evolution?

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Genetic variation is crucial for evolution as it provides the raw material for natural selection to act upon, leading to adaptations in populations.

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What is the difference between artificial selection and natural selection?

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Artificial selection is the intentional breeding of organisms by humans for desired traits, while natural selection occurs without human intervention.

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What is speciation?

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Speciation is the evolutionary process by which populations evolve to become distinct species.

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What is adaptation?

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Adaptation is a trait that helps an organism survive and reproduce in its environment.