Which Is a Likely Result of a Mass Extinction

question 51

Multiple Choice

Which is a likely result of a mass extinction?

• A) The creation of "empty niche spaces," which can stimulate radiation of surviving groups.
• B) The elimination of non-beneficial alleles from gene pools.
• C) The increase in the rate of new mutations in remaining species.
• D) The decrease in the rate of new mutations in remaining species.
• E) The introduction of mutations that have a greater than usual effect.

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Definitions:

Aggregate Expenditure

The total amount spent on goods and services in an economy at a given level of income during a specific period.

Marginal Propensity

The ratio of the change in consumption or saving to the change in income, indicating how income changes affect spending or saving behaviors.

Aggregate Expenditure

The total amount of spending in the economy that includes consumer spending, investment, government spending, and net exports.

Multiplier

An economic factor that quantifies the change in income levels resulting from a change in spending or investment.