Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:### What is natural selection and how does it relate to descent with modification (evolution as described by Darwin)?
Natural selection is the process by which certain traits become more or less common in a population due to the differential reproductive success of organisms with those traits. As individuals with advantageous traits are more likely to survive and reproduce, these traits become more common in the population over generations. This concept, first articulated by Charles Darwin, explains how species evolve over time.
Darwin described the mechanism of natural selection as a key component of "descent with modification," which is the process by which organisms change over time through the accumulation of small genetic variations. Over long periods, these modifications can lead to the emergence of new species. Natural selection thus drives the evolution of species by favoring the reproductive success of individuals with beneficial adaptations in their environment.
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