The _____ Forms an Air-Tight Seal Between the Outer Ear

question 33

Multiple Choice

The _____ forms an air-tight seal between the outer ear and the middle ear and vibrates in response to the sound waves that strike it.

• A) Eustachian tube
• B) oval window
• C) basilar membrane
• D) tympanic membrane

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Definitions:

Regressive

A term usually used to describe a tax system in which the tax rate decreases as the taxable amount increases, effectively placing a higher burden on lower-income earners.

Indirect

Pertains to actions, effects, or financial transactions that are not direct or straightforward, often referring to indirect taxes or costs.

Direct

A straightforward approach or method that does not involve intermediaries or detours.

Public Goods

Goods or services produced by the government; they can be jointly consumed by many individuals simultaneously at no additional cost and with no reduction in quality or quantity.