Evolution

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What is an adaptation?

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An inherited trait that increases the likelihood of an organism's survival in its environment.

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What is natural selection?

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The process by which organisms that are better adapted to their environment tend to survive and produce more offspring.

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What does variation mean in biology?

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Genetic differences between individuals of a species.

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What is camouflage?

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A type of adaptation that allows an organism to blend in with its environment to avoid detection by predators.

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Which organisms are most likely to survive?

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The best adapted organisms.

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What is the role of mutations in evolution?

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

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What is fitness in the context of evolution?

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Fitness refers to an organism's ability to survive and reproduce in its environment.

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How does environmental change affect evolution?

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Environmental changes can lead to new selection pressures, causing species to adapt, migrate, or face extinction.

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What is the significance of the fossil record?

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The fossil record provides evidence of how species have changed over time and supports the theory of evolution.

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What is speciation?

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The process by which new species arise from existing species.