Yahoo India Web Search

Search results

  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. Sep 25, 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.

  3. Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.

  4. 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.’.

  5. Jan 15, 2021 · Natural selection is a pressure that causes groups of organisms to change over time. Animals inherit their genetics from their parents or ancestors, and the environment is constantly changing. So, no organism is perfectly adapted to its environment. Thus, natural selection is constantly influencing the evolution of species.

  6. Natural selection is the process by which biological evolutionary changes take place. Natural selection acts on populations and not individuals.

  7. Aug 3, 2023 · Natural selection is the process whereby organisms better adapted to their environment tend to survive, pass on the genes, and produce more offspring. It is a mechanism of evolution that causes species to change and diverge over time. Natural Selection.

  8. Oct 26, 2024 · Natural selection relies on variations that already exist within a population, driven by genetic mutations that produce new, inheritable traits. Charles Darwin outlined the core principles of natural selection, which include variation, inheritance, high population growth, and reproductive advantage. Variation:

  9. 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.

  10. Natural selection is a mechanism of evolution. 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.

  11. 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.