The Evolution of Development of Snout-Length in Cichlid Fish Is

question 15

Multiple Choice

The evolution of development of snout-length in cichlid fish is best explained by

• A)a single gene mutation.
• B)the co-option of an existing gene for a new function.
• C)homoplastic convergence.
• D)gene duplication and divergence.
• E)conserved genes.

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Definitions:

Shortage

A market condition in which the demand for a product exceeds its supply at a particular price.

Market Price

The actual selling price of a good or service in the marketplace, determined by the forces of supply and demand.

Surplus

A situation in which the quantity of a good or service exceeds the quantity demanded at the current price.

Shortage

A situation in which the demand for a product or service exceeds the available supply.