A Significant Decrease in the Price of a Variable Input

question 56

Multiple Choice

A significant decrease in the price of a variable input causes the:

• A)marginal,average,and total cost curves to shift downward.
• B)average total cost curve to shift downward,causing a fall in output.
• C)average variable cost curve to shift downward while leaving the output level unchanged.
• D)marginal cost curve to shift downward.

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Definitions:

Behavioral Isolation

A form of reproductive isolation where two populations do not mate because of differences in courtship rituals or other behaviors.

Gametic Isolation

A type of prezygotic barrier where the gametes (egg and sperm) of two different species are unable to fuse or recognize each other, preventing fertilization.

Sympatric Species

Species that occupy the same or overlapping geographical areas but remain genetically distinct without interbreeding.

Temporal Isolation

A mechanism of reproductive isolation that occurs when two species breed at different times of the day, season, or year, preventing mating.