Scientists Have Developed a New Type of Margarine Containing Plant

question 35

Multiple Choice

Scientists have developed a new type of margarine containing plant ingredients they think will lower blood cholesterol levels in people who use the margarine. They want to test this by having some people use the new margarine for a while and then compare their cholesterol levels with those of a group of people who use regular margarine. This is an example of what type of research design?

• A) epidemiological study
• B) case study
• C) intervention study
• D) laboratory study

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Definitions:

Wood

A natural, fibrous material derived from trees, widely used for construction, manufacturing, and fuel.

Production Function

A mathematical model that describes the maximum output of a firm, given the inputs of labor, capital, and technology.

Plastic

A wide range of synthetic or semi-synthetic materials that are malleable and so can be molded into solid objects of diverse shapes.

Wood

A hard, fibrous material made of the stems and branches of trees or shrubs, often used for construction, furniture, and fuel.