A Scientist Wishes to Test a New Antibiotic's Ability to Treat

question 6

Multiple Choice

A scientist wishes to test a new antibiotic's ability to treat stubborn bacterial infections.He tests his hypothesis that the antibiotic works better than existing treatments by giving bacterial infections to mice and treating them with the antibiotic.He then determines how many of the mice recover from their infections.What is missing from his experimental design?

• A)He is missing a control group of mice that received a half dose of the new antibiotic.
• B)He is missing a control group of mice that did not receive the new antibiotic.
• C)Nothing is missing-he has done everything he needs to do for this to be a successful experiment.

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Definitions:

Folic Acid

A B vitamin that is crucial for healthy cell growth and development, particularly important during pregnancy.

Uterine Contractions

The tightening and relaxing of the uterine muscles, which can occur during labor, menstruation, or at other times.

Third Stage

Typically refers to the final phase of labor in childbirth, involving the delivery of the placenta after the baby is born.

Down Syndrome

A condition in which a third, extra chromosome appears at the 21st site; also known as trisomy 21. Down syndrome is associated with distinctive physical characteristics accompanied by developmental disability.