A researcher conducts a study to determine the effectiveness of a chemical at removing paint from a house’s siding. The research
er’s study shows that the chemical removes around 80 percent of the paint on the test samples. The researcher publishes her results. Several other scientists read about the experiment and repeat it in their own laboratories. Why should the scientists repeat an experiment that has already been done?
A. The scientists are trying to claim the discovery as their own.
B. Scientists repeat experiments in order to prevent bias.
C. The scientists repeat the experiment because they think the researcher is lying.
D. Scientists repeat experiments in their spare time when they are bored.
I believe the last option is the correct one for the illustration of the single celled organism provides and the environment that it is found living in.
