What Does a Sudden Reduction in Population Size Generally Result

question 33

Multiple Choice

What does a sudden reduction in population size generally result in?

• A) extinction
• B) mutation
• C) speciation
• D) genetic drift

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Definitions:

Birthrate

A measure of fertility, usually expressed as the number of births per 1,000 people in a population in a given year.

Immigration

The action of coming to live permanently in a foreign country, often resulting from the desire for better opportunities or to escape adverse conditions.

U.S. Census

A decennial (every 10 years) count and demographic survey of the United States population, used to allocate congressional seats, electoral votes, and government funding.

Undercounted

Describes a situation where the actual number or extent of a phenomenon is not fully captured or represented in official counts or statistics.