A Researcher Wants to Know How Effective a New Suntan

question 18

Multiple Choice

A researcher wants to know how effective a new suntan lotion is at preventing skin cancer caused by UV radiation. She uses mice as test subjects to model the effects for humans. Which of the following is the best control for this experiment?

• A) Only mice in the control group are shaded during the experiment.
• B) Mice in the test group receive twice as much UV radiation as those in the control group.
• C) No suntan lotion is applied to mice in the control group; lotion is only applied to the test group.
• D) Mice in the test group are from a genetic line that increases their susceptibility to UV radiation.
• E) Mice in the control group are provided lotion in their drinking water to maximize effectiveness.

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Definitions:

Negotiable Instrument

A written document guaranteeing the payment of a specific amount of money, either on demand or at a set time, with the payer named on the document.

Holder

An individual or entity that legally possesses a negotiable instrument, like a check or bond, and has the right to enforce its terms.

Immunity

A provision or status that protects a person or entity from legal action or liability under certain conditions.

Drawee

The party directed by a drafter (e.g., the issuer of a check) to pay a certain sum of money to the party named in the document.