How Is It That Humans Can Perceive Multiple Sounds at Once

question 69

Multiple Choice

How is it that humans can perceive multiple sounds at once?

• A) Humans have two ears, each perceiving a subset of frequencies in the environment.
• B) Each portion of the basilar membrane vibrates at a unique frequency, and multiple regions can be stimulated at the same time.
• C) The fluid in the middle ear can transmit multiple frequencies to the oval window.
• D) The more frequencies of sounds that are present, the farther the sound travels into the cochlea.

---

Definitions:

Treasury Bonds

Long-term government securities issued with the promise to pay periodic interest and repay the principal at maturity.

Expected Cash Flows

The anticipated movement of cash in and out of a business over a future period, often used in financial forecasting.

Opportunity Cost

The loss of potential gain from other alternatives when one alternative is chosen.

Present Value

The value of a future amount of money in today's terms, discounted at a particular rate.