which phrase best summarizes the theory of evolution by natural selection? a. parent organisms pass on traits they have acquired during their lifetime. b. only the strongest animals survive. c. life must come from other life. d. populations change over long periods of time.
The phrase that best summarizes the theory of evolution by natural selection is B) only the strongest animals survive. If you are strong enough and can fight for survival, you are more likely to survive than some other creature that doesn't know what to do to make a living.
