Natural Selection & Adaptations

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What is natural selection?

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Natural selection is the process by which organisms that are better adapted to their environment tend to survive and produce more offspring.

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What is an adaptation?

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An adaptation is a trait or characteristic that helps an organism survive and thrive in its environment.

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Why do organisms reproduce many offspring?

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Organisms reproduce many offspring to increase the chances that some will survive to adulthood.

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What is camouflage?

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Camouflage is a type of adaptation that allows an organism to blend in with its environment to avoid predators.

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How did the Industrial Revolution affect the environment?

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The Industrial Revolution led to pollution and changes in the environment, such as trees becoming black from soot.

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What happened to the peppered moths during the Industrial Revolution?

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The number of white peppered moths decreased because they were more visible to predators on soot-colored trees.

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What is the role of predators in natural selection?

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Predators influence natural selection by preying on the less adapted individuals, allowing the better-adapted ones to survive.

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What is the significance of genetic variation in a population?

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Genetic variation is important for natural selection because it provides the raw material for evolution.

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What is the difference between a mutation and an adaptation?

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A mutation is a change in DNA that can lead to new traits, while an adaptation is a trait that has evolved to improve survival.

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What does it mean for a species to become extinct?

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A species becomes extinct when there are no remaining individuals of that species alive.