Which of the following statements are commonly cited as effects of testosterone?

• A. Impacts of cortisol
• B. Impacts of testosterone
• C. Examples of hormones
• D. Target cells

Answer: (B)

Understanding what counts as the effects of a hormone helps here. Testosterone is a hormone that produces changes in the body and behavior, so when we talk about what it does, we’re referring to its impacts or effects. That’s why the statement about the impacts of testosterone fits best—it directly describes the outcomes the hormone can cause, such as physical changes or behavioral tendencies. The other ideas point to different concepts: cortisol is a separate hormone with its own effects, target cells describe where hormones act rather than the results of their action, and examples of hormones are simply a category, not an outcome.