The Following Questions Refer to the Diagram of the Ear

question 12

Multiple Choice

The following questions refer to the diagram of the ear in Figure 50.2.

Figure 50.2
-Which structure(s) is (are) involved in equilibrium?

• A)2, 3, and 4
• B)2, 5, and 7
• C)4
• D)5
• E)7 and 8

---

Definitions:

Homeostasis

The regulatory process by which biological systems maintain a stable internal environment despite external changes.

Vaporization

The phase transition of a substance from a liquid to a gas, occurring through the processes of evaporation or boiling.

Calorie

The amount of heat energy required to raise the temperature of 1 g of water 1°C; equivalent to 4.184 joules. Compare with Kilocalorie.

pH Value

A numeric scale used to specify the acidity or basicity of an aqueous solution, with values ranging from 0 (most acidic) to 14 (most basic), and 7 being neutral.