Environmental Health Science Is Concerned with Agent, Host, and Environmental

question 16

Multiple Choice

Environmental health science is concerned with agent, host, and environmental factors in disease (the epidemiologic triangle) . Which statement is true about the triangle?

• A) Agent factors can include particles, toxic chemicals, and pesticides.
• B) The environment is the domain in which disease-causing agents may exist.
• C) The host is the person who affords lodgment of an infectious agent.
• D) Disease causality includes three major factors: agent, host, and environment.
• E) All of these are correct.

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Definitions:

Profit-Maximizing Price

The price at which a firm can sell its product to earn the maximum possible profit on those sales.

Marginal Revenue

The additional income from selling one more unit of a good; it is the change in total revenue from an additional unit sold.

Marginal Revenue

The increase in revenue resulting from the sale of one additional unit of a product.

Maximum Level

The highest or utmost point, degree, or volume of something that can be achieved or reached.