A Single Population Becomes Separated by a Geographic Barrier,and Each

question 3

Multiple Choice

A single population becomes separated by a geographic barrier,and each population acquires genetic differences.Which of the following could happen if this barrier is removed and the two populations interact and attempt to mate?

• A)Reproductive isolating mechanisms may not have evolved and thus the two species could successfully mate.
• B)Prezygotic isolating mechanisms may have evolved,thus preventing the two populations from mating.
• C)Postzygotic isolating mechanisms may have evolved,thus preventing the two populations from producing viable or fertile offspring.
• D)All of the above could happen.

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Technological Forecasts

Long-term forecasts concerned with the rates of technological progress.

Business Cycle

The natural rise and fall of economic growth that occurs over time, including periods of prosperity, recession, depression, and recovery.

Inflation Rates

The rate at which the general level of prices for goods and services is rising, eroding purchasing power.

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The total amount of monetary assets available in an economy at a specific time, including cash, coins, and balances held in bank accounts.