Evolution is sometimes characterized as “survival of the fittest.” Is this consistent with an evolutionary biologist’s definitions of fitness and natural selection? Is this a good way to think about evolution, or a poor one?

Evolution is sometimes characterized as “survival of the fittest.” Is this consistent with an evolutionary biologist’s definitions of fitness and natural selection? Is this a good way to think about evolution, or a poor one?

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter19: Population Genetics And Human Evolution

Section: Chapter Questions

Problem 21QP

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Concept explainers

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.

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Evolution is sometimes characterized as “survival of the fittest.” Is this wording consistent with an evolutionary biologist’s definitions of fitness and natural selection? Is it a good way to think about evolution or a poor one?
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