How Have Caesarean Sections and Intensive Neonatal (Near-Birth)medical Care Likely

question 36

Multiple Choice

How have Caesarean sections and intensive neonatal (near-birth) medical care likely affected the average birth weight of American babies?

• A)Birth weight is now subject to disruptive selection instead of stabilizing selection.
• B)Average birth weights have significantly decreased.
• C)Gene flow will occur in the direction of larger and smaller infants.
• D)Stabilizing selection for birth weight no longer has as much of an influence.

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Definitions:

Dehydration

A condition resulting from excessive loss of body water, impairing normal bodily functions.

Incentive

A positive or negative environmental stimulus that motivates behavior.

Dairy Queen

A chain of soft serve ice cream and fast-food restaurants.

Incentive

A thing that motivates or encourages someone to do something, often seen in psychology as a way to influence behavior.