Dr. peterson does an experiment to research the growth rate of mice. he has two groups of mice. he feeds one group a type of food and adds chemical a, which is supposed to increase growth rate. the other group he feeds the same food without chemical a added. his research shows that chemical a increases growth rate by 30%. he does the experiment 4 times and comes up with the same result each time.

dr. peterson concludes that chemical a does increase the growth rate of mice. is dr. peterson's conclusion supported by scientific knowledge?

a.
no; scientific knowledge never comes from research or experiments.
b.
yes; any study that involves a percentage is based on scientific knowledge.
c.
yes; his conclusion is supported by evidence from his experiment.
d.
no; science cannot be used to research small animals such as mice.