By What Means Do We Perceive the Pitch of an Intermediate-Frequency

question 7

Multiple Choice

By what means do we perceive the pitch of an intermediate-frequency sound (such as 1000 Hz) ?

• A) A sound wave of 1000 Hz excites 1,000 hair cells to respond.
• B) A sound wave of a particular frequency excites hair cells at a particular location along the basilar membrane.
• C) Each hair cell sends one impulse for each sound wave.
• D) Each sound wave excites a group, or volley, of hair cells.

---

Definitions:

Poor

The state of having insufficient financial resources to meet basic living expenses such as food, clothing, and housing, resulting in a low standard of living.

Lower Two Quintiles

Refers to the bottom 40% of the population, often in terms of income distribution, highlighting socioeconomic status.

Income Received

The total earnings obtained by an individual or entity, including wages, salaries, profits, rents, and other forms of financial gains.

Lowest Quintile

describes the bottom 20% segment of a population sorted by income or wealth, usually referenced in economic studies of inequality.