If Good a and Good B Are Substitutes and the Price

question 156

Multiple Choice

If good A and good B are substitutes and the price of good A decreases,the demand for good B will

• A)not change.
• B)decrease.
• C)increase.
• D)become nonexistent.

---

Definitions:

Syrinx

The vocal organ in birds, located at the base of a bird’s trachea, which enables the production of complex sounds and birdcalls.

Proximate Levels

Describes immediate, underlying causes of biological processes or behaviors, focusing on how they occur.

Ultimate Levels

Explanations in biology that address why events occur, based on evolutionary significance and history.

Sonograms

Visual representations of the spectrum of frequencies of sound as they vary with time, often used in bird song analysis.