Which of the Following Observations Is an Example of a Positive

question 55

Multiple Choice

Which of the following observations is an example of a positive correlation?

• A)When a population's vitamin D intake decreases,the percentage of people in the population that have healthy immune systems decreases.
• B)When a population's intake of plant foods decreases,the percentage of obese people in that population increases.
• C)When a population's level of physical activity increases,the percentage of people who develop heart disease decreases.
• D)When a population's intake of vitamin A decreases,the percentage of people in the population who develop blindness increases.

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Definitions:

Exaggerated Response

An exaggerated response is an overreactive or heightened reaction to a stimulus, which can be physiological or emotional.

Passive Artificial Immunity

Immunity acquired by the transfer of antibodies from another individual, as through injection or from mother to fetus across the placenta.

Adaptive Immunity

The branch of the immune system that involves the creation of antibodies and memory cells in response to an exposure to a specific pathogen, providing long-term immunity.

Immediate Protection

Rapid defense mechanisms activated promptly to prevent infection or damage before long-term specific immunity develops.