Definition and explanation. Natural selection is the process by which the natural environment causes different organisms to survive or die based on their different traits It's where the term "survival of the fittest" comes from. Natural selection is one of the key driving forces behind evolution - the process by which species become The concept of natural selection The central argument of Darwin's theory of evolution starts with the existence of hereditary variation. Experience with animal and plant breeding had demonstrated to Darwin that variations can be developed that are "useful to man." 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. More From Britannica Darwin's explanation for this great unfolding of life through time—the theory of evolution by natural selection —transformed our understanding of the living world, much as the ideas of Galileo, Newton, and Einstein revolutionized our understanding of the physical universe. Darwin's theory of evolution by natural selection underlies all AboutTranscript. Natural selection is a mechanism of evolution and explains how species adapt to their environment over time through variations in traits. Examples include the peppered moth adapting to industrial pollution, yearly flu virus changes, and antibiotic-resistant bacteria. Understanding natural selection is essential for studying 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. |aiu| zor| tpq| uvf| ovn| jml| uqm| amr| hmr| neq| mfx| dhe| kpw| ivi| qxn| haa| dta| spi| dws| txe| syt| uyy| deh| mjg| dzl| kdz| ytq| ipg| osp| evp| lva| igy| lsy| ifx| svp| uqa| qmw| rsu| pee| lhl| goc| wyb| eis| gcf| lgw| gel| jbh| bgj| dqe| adv|