What Was the Most Critical Lesson About Teratogens Learned from Studies

question 32

Multiple Choice

What was the most critical lesson about teratogens learned from studies on the use of the drug diethylstilbestrol (DES) by pregnant women?

• A) Sometimes what appear to be teratogens actually are harmless drugs.
• B) Infants in the late fetal period appear to be the most at risk for impact from drug-related teratogens.
• C) Sometimes the effects of teratogens are not apparent until long after exposure.
• D) Females appear to be at much greater risk from teratogens.

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Definitions:

Profit

The financial gain realized when the amount of revenue gained from a business activity exceeds the expenses, costs, and taxes needed to sustain the activity.

Marginal Revenue

The additional income gained from selling one more unit of a good or service.

Total Cost

The sum of fixed costs and variable costs incurred by a business in producing a particular level of output.

Industry Equilibrium Price

The price at which the total quantity demanded by consumers equals the total quantity supplied by firms in an industry.