Question

16 multiple choice 5 points base your answer(s) to the following question(s) on the information and chart below and on your knowledge of biology. it has been hypothesized that a chemical known as bw prevents colds. to test this hypothesis, 20,000 volunteers were divided into four groups. each volunteer took a white pill every morning for one year. the contents of the pill taken by the members of each group are shown in the chart below. which group served as the control in this investigation? 1 2 3 4

Explanation:

In a scientific experiment, the control group is the one that does not receive the treatment (in this case, the chemical BW). Group 1 only has sugar in the pill and no BW, while the other groups have varying amounts of BW.

Answer:

1. Group 1