By the End of the Third Month, the Typical Fetus

question 203

Multiple Choice

By the end of the third month, the typical fetus can be described as "three times three" because __________.

• A)it has been 3 months and the fetus weighs 3 ounces and is 3 inches long
• B)it weighs 3 pounds, is 3 inches long, and has 3 senses
• C)3 major systems have developed: brain, heart, and lungs
• D)all 3 facial features are clearly distinguishable

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Definitions:

Neutral

Not supporting or helping either side in a conflict, dispute, or competition.

Independent Variable

In experimental studies, this is the variable that the researcher alters to examine its impact on the dependent variable.

Dependent Variable

The variable in an experiment that is expected to change in response to manipulations of the independent variable.

Confound

A variable that influences both the dependent and independent variables in a study, potentially skewing results and making it difficult to determine causality.