Suppose Total Expenditures for a Typical Household in 2009 Were

question 90

Multiple Choice

Suppose total expenditures for a typical household in 2009 were $2,500 per month and that the cost of purchasing exactly the same items in 2012 was $3,200 per month.If 2009 is the base year,the consumer price index (CPI) for 2012 equals

• A) 78.
• B) 100.
• C) 128.
• D) 131.
• E) 145.

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Definitions:

Temporal Isolation

A form of reproductive isolation where two species breed at different times of day, season, or years, preventing interbreeding.

Sexual Isolation

A mechanism of evolutionary divergence where different species or populations can no longer interbreed due to behavioral or genetic barriers.

Gametic Isolation

A prezygotic barrier where gametes (egg and sperm) of different species are incompatible, preventing fertilization.

Mechanical Isolation

A form of reproductive barrier where differences in the size and shape of reproductive organs prevent mating between species.