Izzy's Pupils Are Dilated and Her Heart Is Pounding; Her

question 71

Multiple Choice

Izzy's pupils are dilated and her heart is pounding; her breathing is shallow and rapid. Her _________ nervous system is active.

• A)parasympathetic
• B)sympathetic
• C)autosympathetic
• D)somatic

---

Definitions:

Perfectly Competitive

A market structure characterized by a large number of small firms, homogenous products, and free entry and exit, where no single firm has market power.

Variable Cost

Expenses that fluctuate with the level of output or business operations, contrasting with fixed costs.

Fixed Cost

Costs that do not change with the level of output produced, such as rent, salaries, and insurance premiums.

Economic Profit

The difference between total revenue and total economic costs (including both explicit and implicit costs), reflecting a firm's financial performance.