Use the Following Information to Answer Questions

question 85

Multiple Choice

Use the following information to answer Questions
A scientific study looked at the effect of tanning beds on DNA damage. The scientists took skin cells and exposed them to UV radiation (the type used in indoor tanning beds) for different lengths of time: some for 1 minute, some for 5 minutes, some for 15 minutes, and some for 30 minutes. They then looked for signs of DNA damage and compared the results to cells that had never been exposed to UV light.
-What is the independent variable in this experiment?

• A) the number of skin cells
• B) the type of light
• C) the length of time the cells are exposed to UV light
• D) the untreated cells
• E) the amount of DNA damage in the cells

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Definitions:

Local Hospital

A healthcare facility that provides medical and surgical treatment and nursing care for sick or injured people in a specific geographic area.

Median Birth Weight

The middle value of birth weights arranged in order of magnitude, such that half of the babies weigh less and half weigh more.

Boxplot

A graphical representation used in statistics that displays the distribution of data through their quartiles, highlighting the median and outliers.

Local Hospital

A healthcare institution providing patient treatment with specialized medical and nursing staff and medical equipment, typically serving a nearby geographic area.