A Sociologist Sets Up an Experiment on the Effects of Energy

question 70

Multiple Choice

A sociologist sets up an experiment on the effects of energy drinks on sleep.The individuals who are given a placebo drink are considered to be the

• A)independent variable.
• B)control group.
• C)experimental group.
• D)dependent variable.

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Definitions:

Nutrients

Substances obtained from food that are essential for growth, metabolism, and overall health.

Gases

Substances that exist in the gaseous state at standard temperature and pressure.

Capillaries

Microscopic blood vessels that facilitate the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between the blood and tissues.

Fenestrated Capillaries

Capillaries with small pores in their endothelial lining, allowing for the rapid exchange of substances between blood and tissues.