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 teenage girls increase their intake of iron-rich foods,the percentage of the girls who have iron deficiency decreases.
• B)When a population consumes more fruits and vegetables,the percentage of people in that population with scurvy decreases.
• C)When older adults increase their daily intake of vitamin D,the percentage of the adults that develops infections decreases.
• D)When a group of 6-year-old children increase their physical activity level to 60 minutes a day,the children's muscle mass increases.

---

Definitions:

Intravascular

Situated within or occurring inside a blood vessel.

Transcellular

Pertaining to or occurring through the cells, often used to describe the movement of substances across cell membranes in body tissues.

Extracellular Fluid Volume

The volume of fluid outside of cells in the body, which includes blood plasma, lymph, and interstitial fluid.

Postural Hypotension

Abnormally low blood pressure occurring when an individual assumes the standing posture; also called orthostatic hypotension.