A Chain of Three Small Articulated Bones Extends Across the Middle

question 34

Multiple Choice

A chain of three small articulated bones extends across the middle ear cavity and conducts vibrations from the tympanic membrane across the middle ear into the oval window and the fluid-filled inner ear.What are the names of those three small articulating bones?

• A) Ossicles, incus, and crura
• B) Stapes, capitulum, and stirrup
• C) Malleus, incus, and stapes
• D) Anvil, head, and hammer

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Definitions:

Organic Material

Material that is derived from living organisms, including plants, animals, and their by-products, which is capable of decomposition by microorganisms.

Soil Horizon

A layer parallel to the soil surface, whose physical characteristics differ from the layers above and beneath, as part of soil structure.

Net Primary Productivity

The rate at which plants in an ecosystem produce net useful energy (biomass) after accounting for the energy consumed through the process of respiration.

Ecosystem

A biological community of interacting organisms and their physical environment, considered a system through which nutrients are cycled and energy flows.