How Do the Ears of Mammals Differ from Those of Birds

question 172

Multiple Choice

How do the ears of mammals differ from those of birds and reptiles?

• A) Mammalian ears have three small bones to transmit vibrations to the cochlea,while the other species have only one bone.
• B) Birds and reptile ears have the pinna and mammalian ears don't.
• C) The inner ear in mammals have liquid filled in it whereas inner ears of reptiles and birds do not have liquid filled in their inner ear.
• D) Reptiles and birds have more hair cells than mammals.

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Definitions:

Projected Long-Run Needs

Anticipated requirements of a business over an extended period, which influence operational and strategic planning.

Capital Budget

A budget for major capital, or investment, expenditures that are used to acquire or upgrade physical assets such as property and equipment.

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A method in cost accounting that assigns costs to products or services based on both direct and indirect cost factors.

Variable Costs

Costs that vary in direct proportion to changes in production or sales volume, such as raw materials and sales commissions.