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.

Error analysis: what might be the reason that some of your percentages didn't exactly match your predicted results? gametes aren't responsible for inheritance. mice don't have large litters, so the sample size was not large enough. the wrong type of mice were used.

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.

Which of the following describes what an activator an enhancer are