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  1. Dictionary
    natural selection
    /ˌnatʃ(ə)rəl sɪˈlɛkʃn/

    noun

    • 1. the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin, and it is now regarded as be the main process that brings about evolution.
  2. The term natural selection is most often defined to operate on heritable traits, because these directly participate in evolution. However, natural selection is "blind" in the sense that changes in phenotype can give a reproductive advantage regardless of whether or not the trait is heritable.

  3. Oct 19, 2023 · Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.

  4. Jul 5, 2024 · natural selection, process that results in the adaptation of an organism to its environment by means of selectively reproducing changes in its genotype, or genetic constitution. A brief treatment of natural selection follows. For full treatment, see evolution: The concept of natural selection.

  5. Jan 15, 2021 · The defining characteristic of natural selection is that it is a force that allows some organisms to reproduce more than others. Natural selection does not always lead to the “right” answer, as some people tend to think. Natural selection is an imperfect process.

  6. Nov 10, 2023 · Natural selection is the adaptation strategy of living organisms on Earth. It occurs when they acquire and evolve a trait with time that provides them a distinct advantage for their survival and reproduction over other organisms in the population. Darwin called them ‘survival of the fittest.’.

  7. evolution.berkeley.edu › mechanisms-the-processes-of-evolution › natural-selectionNatural Selection - Understanding Evolution

    Natural selection is one of the basic mechanisms of evolution, along with mutation, migration, and genetic drift. Darwin’s grand idea of evolution by natural selection is relatively simple but often misunderstood. To see how it works, imagine a population of beetles: There is variation in traits.

  8. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time. Natural selection is one of the ways to account for the millions of species that have lived on Earth.

  9. Natural selection is a mechanism that makes any species - be it a plant, animal, fungus, bacteria, you name it - better adapted to their environment. For herbivores (i.e. plant eaters), the plants are indeed part of their environment.

  10. The meaning of NATURAL SELECTION is a natural process that results in the survival and reproductive success of individuals or groups best adjusted to their environment and that leads to the perpetuation of genetic qualities best suited to that particular environment.

  11. This process is called natural selection. Organisms with disadvantageous traits are likely to have fewer offspring. So, natural selection also causes disadvantageous traits to become less common in a population.