Evolution and Natural Selection

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What is evolution?

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Evolution is the process by which different kinds of living organisms develop and change over time through genetic variation and natural selection.

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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 does 'adaptation' mean in the context of evolution?

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Adaptation refers to the process by which a species becomes better suited to its environment through changes in traits.

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What is extinction?

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Extinction is the end of an organism or a group of organisms, where no individuals of that species remain.

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What role does mutation play in evolution?

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Mutations are changes in DNA that can lead to new traits, which may be beneficial, harmful, or neutral, influencing evolution.

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How do environmental changes affect species?

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Environmental changes can lead to adaptations, migrations, or extinctions of species depending on their ability to cope with the changes.

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What is the significance of genetic variation in a population?

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Genetic variation is crucial for a population's ability to adapt to changing environments and is a key factor in natural selection.

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What is a niche?

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A niche is the role or function of an organism or species within an ecosystem, including its habitat, resource use, and interactions with other organisms.

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How do species evolve over time?

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Species evolve over time through processes like natural selection, genetic drift, and gene flow, leading to changes in traits across generations.

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What is the difference between artificial selection and natural selection?

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Artificial selection is the process by which humans breed organisms for desired traits, while natural selection occurs without human intervention.