A Major Difference Between Allopatric and Sympatric Speciation Is Whether

question 42

Multiple Choice

A major difference between allopatric and sympatric speciation is whether

• A) the resulting species are reproductively isolated or not.
• B) gene flow continues to occur or not.
• C) two or three species result.
• D) geographic isolation is required or not.
• E) the new species are separated by a prezygotic or postzygotic isolating mechanism.

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Definitions:

MC (Marginal Cost)

The additional cost incurred in producing one more unit of a good or service.

Downward-Sloping Demand

A representation of the relationship between price and quantity demanded, indicating that as price decreases, demand increases.

Reasonable Substitutes

Alternative products or services that can satisfactorily replace others, meeting the same needs or wants.