If Two Variables Are Positively Related,then

question 167

Multiple Choice

If two variables are positively related,then

• A) one variable causes the other.
• B) an increase in one variable is accompanied by a decrease in the other.
• C) an increase in one variable is accompanied by an increase in the other.
• D) they change together, but not necessarily in the same direction.
• E) neither variable can be positively related to any other variable.

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Definitions:

Adenosine Triphosphate

A high-energy molecule found in the cells of all living things, serving as a primary energy carrier.

Energy

The capacity to do work, which in biological systems is derived from the chemical energy stored in foods or from sunlight in photosynthetic organisms.

Muscles

Tissues in the body that can contract, enabling movement and support of bodily functions.

Capillaries

Small, thin-walled blood vessels that connect arteries and veins, where oxygen, nutrients, and wastes are exchanged between the blood and tissues.