What Is the Function of the Pinna

question 215

Multiple Choice

What is the function of the pinna?

• A) It vibrates in synchrony with high-frequency tones.
• B) It protects the eardrum from overstimulation.
• C) It filters out distracting sounds.
• D) It helps us locate the source of sounds.

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Definitions:

Fixed Costs

Costs that do not change with the level of production or sales over a certain period.

Volume Of Activity

A measure of the total amount of work performed or output produced in a specific period.

Margin Of Safety

Margin of safety is the difference between actual or projected sales and the sales level at which the business breaks even.

Contribution Margin

The amount by which a product's selling price exceeds its total variable costs, indicating how much contributes to covering fixed costs and generating profit.