Brittany,at Age 5,is Thinner Than She Was a Year Ago;

question 120

Multiple Choice

Brittany,at age 5,is thinner than she was a year ago; she has gained only 4 pounds even though she has grown 2 inches.Which of the following statements is probably TRUE?

• A) Her growth pattern is normal for her age.
• B) Her diet is probably lacking essential nutrients.
• C) Her growth will probably slow down when she reaches puberty.
• D) She was probably a low-birth-weight baby.

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Definitions:

Variation Range

The difference between the highest and lowest values in a set of data, measuring the spread or dispersion of the data points.

Exaptation

A trait that becomes used for an entirely new purpose during evolution.

Key Innovation

An evolutionary adaptation that gives its bearer the opportunity to exploit a particular environment more efficiently or in a new way.

Adaptive Radiation

An evolutionary process in which organisms diversify rapidly into a multitude of new forms, particularly when a change in the environment makes new resources available or opens new niches.