Ascientist uses a simulation because it:
a. provides the most meaningful type of information
b. costs less money than a real experiment
c. is more fun than making measurements in the natural world
d. can make sense of a difficult problem

The correct answer would be option D, Can help make sense of difficult problems.

Explanation:

In simple words, simulation is the Model. Simulation is the imitation of some procedure or method or process or situation. We can say it deception as well. Simulation is used as a method of analysis. When there are complex situations or processes that need to be tested before launching into the general public or to be used in the scientific researches or anything, Simulation is used. Simulation imitates the situation, checks for any errors, experiments the inputs and see the outputs of the process, method, system, etc, which they have developed. So A scientist uses simulation because it can help make sense of difficult problems.

answer: b: experiments that showed that all cells are similar in how they metabolize and in their composition

explanation:

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.