Charles Darwin

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What is the theory of natural selection?

Back

The theory of natural selection is a process where organisms better adapted to their environment tend to survive and produce more offspring.

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What does adaptation mean in biology?

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Adaptation refers to the process by which a species becomes better suited to its environment, often through physical or behavioral changes.

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Why are some individuals more likely to survive and reproduce?

Back

Some individuals are better adapted to exist in their environment than others.

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What is an example of adaptation in animals?

Back

The white feathers of a snowy owl allow it to blend in with its snowy environment during winter.

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What characteristic did Darwin observe about the finches on the Galapagos Islands?

Back

Darwin observed that the finches had different beak shapes adapted to their specific diets.

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What is genetic variation?

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Genetic variation refers to the differences in DNA among individuals within a species.

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How does genetic variation contribute to evolution?

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Genetic variation provides the raw material for natural selection, allowing populations to adapt over time.

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What is the significance of the Galapagos Islands in Darwin's research?

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The Galapagos Islands were crucial for Darwin's observations of species variation and adaptation, leading to his theory of evolution.

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What is the difference between adaptation and variation?

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Adaptation is a trait that enhances survival in a specific environment, while variation refers to the differences among individuals in a population.

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What role does the environment play in natural selection?

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The environment determines which traits are advantageous, influencing which individuals survive and reproduce.