DrGomez Is Investigating a New Drug Designed to Reduce Anxiety

question 275

Multiple Choice

Dr.Gomez is investigating a new drug designed to reduce anxiety.Patients with an anxiety disorder are treated with either the drug or a sugar pill (placebo) for some time,and Dr.Gomez records their anxiety levels at weekly appointments.If a double-blind procedure is used,who will know if a placebo or drug was administered?

• A)the patients but not Dr.Gomez
• B)Dr.Gomez but not the patients
• C)neither Dr.Gomez nor the patients
• D)both Dr.Gomez and the patients

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Definitions:

Behavioral Isolation

A form of reproductive isolation where two populations develop differences in courtship rituals or behaviors that prevent them from mating.

Mating Signals

Behavioral, physical, or chemical signals used by animals to attract or communicate with potential mates.

Courtship

A period during which individuals of many species perform specific behaviors to attract mates.

Gametic Isolation

A prezygotic reproductive barrier where gametes (egg and sperm) from different species are unable to fuse and form a viable zygote.