The Flattened, Rotating Disk of Gas and Dust Around the Protosun

question 24

Multiple Choice

The flattened, rotating disk of gas and dust around the protosun, from which planets were believed to have formed, is called the

• A) solar nebula.
• B) planetary nebula.
• C) condensation nebula.
• D) primordial nebula.

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Definitions:

Basilar Membrane

A structure in the cochlea of the inner ear that plays a key role in the sense of hearing by vibrating in response to sound.

Tectorial Membrane

A structure located within the spine that provides stability by connecting the atlas to the axis, which are the first two cervical vertebrae.

Auditory Ossicles

The small bones in the middle ear (the malleus, incus, and stapes) that transmit sound vibrations from the ear drum to the inner ear.

Basilar Membrane

A critical structure in the cochlea of the inner ear, it plays a pivotal role in sound detection by vibrating in response to different frequencies.