<u><em>FOR ALL THE APEX USERS, the answer is: An error occurs when the damaged DNA is repaired.</em></u>
<em><u>source: Me</u></em>
Because they let any organisms to grow,develop,survive, and reproduce.
Answer:
In 1859, Charles Darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. He defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".
Answer:
Natural selection and speciation: 'Ecological speciation'.
Natural selection is generally recognized as a central mechanism of evolutionary change within species. ... Thus, the populations cease exchanging genes, thereby diverging into separate species because of the adaptive changes that occurred via natural selection.