During the Course of Successful Prenatal Development,a Human Organism Begins

question 9

Multiple Choice

During the course of successful prenatal development,a human organism begins as a(n)

• A)zygote and finally develops into an embryo.
• B)embryo and finally develops into a fetus.
• C)zygote and finally develops into a fetus.
• D)fetus and finally develops into an embryo.

---

Definitions:

High-Pitched

Describes a tone that is very sharp or has a very high frequency.

Frequency Theory

In hearing, the theory that the rate of nerve impulses traveling up the auditory nerve matches the frequency of a tone, thus enabling us to sense its pitch. (Also called temporal theory.)

Place Theory

A theory explaining how sound frequency is encoded in the cochlea of the inner ear, suggesting that specific places along the basilar membrane respond to specific frequencies.

High-Frequency

Relating to or denoting a band of the electromagnetic spectrum or sound above the range of normal human hearing.