Name Two of the Four Key Features of a Well-

question 6

Essay

Name two of the four key features of a well- designed controlled experiment. When is it important to have a well- designed controlled experiment?

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Definitions:

Secondary Sexual Characteristics

Traits that emerge in organisms during puberty but are not directly involved in reproduction, such as breast development in females and facial hair in males.

Testosterone Levels

The concentration of the hormone testosterone in the bloodstream, which plays key roles in male reproductive and secondary sexual characteristics.

Older Men

Generally refers to men who are significantly beyond the middle age, often considered within the context of aging-related issues and experiences.

Nearsightedness

A common vision condition where close objects appear clearly, but distant ones do not due to the shape of the eye causing light rays to focus incorrectly.