Figure 17-3

question 160

Multiple Choice

Figure 17-3. Katie and Taylor are roommates. On a particular day, their lawn needs to be mowed. Each person has to decide whether to take part in mowing the lawn. At the end of the day, either the lawn will be mowed (if one or both roommates take part in mowing) , or it will remain unmowed (if neither roommate mows) . With happiness measured on a scale of 1 (very unhappy) to 10 (very happy) , the possible outcomes are as follows:

-Refer to Figure 17-3.In pursuing her own self-interest,Taylor will

• A) refrain from mowing whether or not Katie mows.
• B) mow only if Katie mows.
• C) mow only if Katie refrains from mowing.
• D) mow whether or not Katie mows.

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Definitions:

Ear Ossicles

The three small bones in the middle ear (malleus, incus, and stapes) that transmit sound vibrations from the eardrum to the inner ear.

Tympanic Membrane

Also known as the eardrum, it's a thin membrane that separates the outer ear from the middle ear and vibrates in response to sound waves.

Ossicles

Small bones; specifically, one of the bones of the tympanic cavity or middle ear.

Membrane

A selective barrier; it allows some things to pass through but stops others. Such membranes can be biological or synthetic.