Evolution and Natural Selection Flashcards

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Note: We may include questions that have multiple correct answers. It’s useful to remember specific examples to understand these concepts better.

What is evolution?

Evolution is the process by which the characteristics of different organisms gradually change over time.

Who proposed the theory of natural selection?

Charles Darwin, a famous naturalist, proposed the theory of natural selection to explain how evolution occurs.

What is natural selection?

Natural selection is the process in which individuals with characteristics better suited to their environment are more likely to survive, reproduce, and pass these traits to the next generation.

How does variation within a population contribute to evolution?

Variation within a population, due to differences in genes, allows some individuals to have traits better suited to the environment, leading to greater survival and reproduction of these traits over time.

Give an example of natural selection using a population of mice.

In a population of mice, if dark-furred mice are less visible to predators on a dark floor, they are more likely to survive and reproduce than white-furred mice, leading to more dark-furred mice in future generations.

What can happen to a species over time due to evolution?

Over time, small differences in features can lead to the evolution of a species. If enough changes occur, the species may become a new species that cannot reproduce with the original species.

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