natural selection
(nat-u-ral-se-lec-tion)
5 syllables
Definition
noun. The process whereby organisms better adapted to their environment tend to survive and produce more offspring. This theory was first fully expounded by Charles Darwin and is now regarded as a fundamental mechanism of evolution.
Example Sentence
Natural selection plays a crucial role in the evolution of species over time.
More Example Sentences
Through natural selection, advantageous traits become more common in a population.
Synonyms
survival of the fittest; evolution; adaptation
Antonyms
artificial selection; genetic drift; mutation
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natural selection