Our Ability to Change the Focus of Our Eyes to See

question 84

Multiple Choice

Our ability to change the focus of our eyes to see objects at different distances depends on changes in the

• A) frequency of impulses in the optic nerve.
• B) thickness of the lens.
• C) position of the retina.
• D) width of the pupil.

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Definitions:

Economic Activities

Activities that involve the production, distribution, and consumption of goods and services within an economy.

Absolute Advantage

The capability of a country or individual to produce more of a good or service with the same amount of resources as competitors.

Opportunity Cost

The price paid for not selecting the next most favorable opportunity when deciding.

Production Possibilities Frontier

A curve that depicts all maximum output possibilities for two or more goods given a set of inputs (resources, labor, etc.), assuming all are used efficiently.