According to charles darwin's theories, how are natural selection and evolution related?
evolution is one mechanism by which natural selection occurs
natural selection is one mechanism by which evolution occurs
natural selection and evolution are synonyms
natural selection and evolution are antonyms

B

Explanation: I think the answer is B because natural selection leads to evolution because they happen in a line or like a chain reaction.

natural selection is one mechanism by which evolution occurs

Explanation:

One of the driving mechanisms for evolution to occur is Natural selection. it is how  nature used selection pressure( environmental factors) in the surrounding environments of the organism to select or favour the fittest organisms, against the less fitted, with increases  gene flow, and therefore   population as the fitted organisms, with subsequent increase in the offspring population.

Natural selection is driven by mutation which causes variation. These interrelated  forces   altered the Genotypes of fitted organisms, and therefore made them to have selected advantages over the less fitted ones.With period of time the population of the less fitted fizzled out, while the  fitted organism population  evolved to dominate the environments.