By What Age Do Most Infants Demonstrate the Ability to Discriminate

question 73

Multiple Choice

By what age do most infants demonstrate the ability to discriminate happy and sad vocal expressions in others?

• A)3 months
• B)12 months
• C)5 months
• D)9 months

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Definitions:

Gravitational Mass

A measure of the amount of matter in an object, which determines the strength of its gravitational attraction to other objects.

Gaseous Molecules

Particles consisting of two or more atoms bonded together that exist in the gas state at room temperature.

Evolution Of Life

The gradual process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.

Radioactive Elements

Chemical elements that are unstable and decay by emitting radiation, including alpha, beta, or gamma rays, used in various applications such as medicine and energy production.