Question

a group of researchers conducted an experiment and collected the data presented in this graph. which of the following statements are supported by the information in this graph? the closed circles mark the end of the experiment for each group of bats. the hypothesis was supported because all members of the control group survived while most of the members of both treatment groups died by the end of the study. the hypothesis was not supported because all members of the control group died while most of the members of both treatment groups survived through the end of the study. the hypothesis was proven because all members of the control group survived while most of the members of both treatment groups died by the end of the study. the hypothesis was proven beyond a doubt because all members of the control group survived while most of the members of both treatment groups died by the end of the study.

Explanation:

The control group of 18 bats that were sham - injected and received no fungus all survived. The two treatment groups, one injected with the North American fungus and the other with a closely - related European fungus, had most of their members die before the end of the study. A hypothesis is supported when the control group behaves as expected (survives in this case) and the treatment groups show the predicted effect (high mortality). However, a hypothesis can't be proven absolutely in science.

Answer:

The hypothesis was supported because all members of the control group survived while most of the members of both treatment groups died by the end of the study.