Question

A scientist is designing an investigation to study the impact of UV radiation present in high-altitude habitats on the population of mountain yellow-legged frog. What type population is most likely to be a control group for the study?

Answer 1

I think its either C, Mountain frogs in a lab setting exposed to UV rays from a sun lamp or D, Mountain frogs in a lab setting with no UV ray exposure

Step-by-step explanation:

EDIT: I searched up meaning of control group and got this,

"A control group in a scientific experiment is a group separated from the rest of the experiment, where the independent variable being tested cannot influence the results. This isolates the independent variable's effects on the experiment and can help rule out alternative explanations of the experimental results."

From this it would more likely to be D as the correct answer

Answer 2

A population of the frogs that do not receive the UV radiation would work as a good control group. In this case, since the impact of the radiation is the variable under study, a group that receives no radiation, and thereby should not exhibit a change, would be a control group that could be compared against the frogs that do receive the radiation.