In Which of the Following Situations Would Speciation Be Most

question 29

Multiple Choice

In which of the following situations would speciation be most likely to occur?

• A)A population of juniper shrubs is split in two by a canyon.Every year,strong winds carry a small amount of the shrub's pollen across the canyon.
• B)Seven monkeys escape from an amusement park and zoo in South Florida.To everyone's surprise,they establish a small but viable population,coexisting successfully with humans in a partly suburban environment very different from their native African habitat.
• C)Bighorn sheep occupy mountains from Canada through Death Valley in Southern California,interbreeding all the way.The populations at the two ends of the range live in very different environments.
• D)A Japanese mollusk species whose larvae are often carried from port to port in ship bilge water now flourishes in San Francisco Bay,a busy commercial port.

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Definitions:

Indifference Curve

A graphical representation of different combinations of two goods or services among which a consumer is indifferent, showing preferences of consumption.

Inferior Good

A type of good for which demand decreases as the income of the consumer increases, opposite to the behavior observed with normal goods.

Normal Good

A good for which demand increases as the income of consumers increases and decreases as the income of consumers decreases, all else being constant.

Income

The financial gain received by an individual or a business in return for providing a good or service or through investing capital, typically measured over a set period of time.