A Region of the Canary Forebrain Shrinks During the Nonbreeding

question 37

Multiple Choice

A region of the canary forebrain shrinks during the nonbreeding season and enlarges when breeding season begins. This change is probably associated with the annual ________.

• A) addition of new syllables to a canary's song repertoire
• B) crystallization of subsong into adult songs
• C) sensitive period in which canary parents imprint on new offspring
• D) elimination of the memorized template for songs sung the previous year

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Definitions:

Market Equilibrium

A situation in which market supply equals market demand, and prices stabilize.

Demand Price

The highest price consumers are willing to pay for a good or service at a given quantity, reflecting the value placed on the item by the market.

Substitutes

Goods or services that can be used in place of each other, where an increase in the price of one leads to an increase in demand for the other.

Imposes a Quota

A restriction, set by a government, on the maximum number of units of a particular product that can be imported or exported within a given period.