Which of the Following Statements Is TRUE Regarding the Impact

question 111

Multiple Choice

Which of the following statements is TRUE regarding the impact of teratogens?

• A) Very few fetuses are exposed to teratogens, so it is easy to determine which teratogen causes which defect.
• B) Fetuses are safe from the effects of teratogens during the first trimester.
• C) Teratogens cause anatomical defects only after organogenesis is complete.
• D) Exposure to teratogens does more damage when it occurs at some points in development than at others.

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Definitions:

Multistage Design

A sampling method involving multiple stages of selection, typically used in large-scale surveys to efficiently gather data.

Statistically Significant

A result is said to be statistically significant if it is unlikely to have occurred by chance alone, according to a predetermined threshold of significance.

Response Variable

In statistics, the variable that measures the outcome of a study or experiment.

Helium

A chemical element with the symbol He and atomic number 2, known for being the second lightest and second most abundant element in the observable universe.