All of the Following Are Reasons Why the Eyes Have

question 9

Multiple Choice

All of the following are reasons why the eyes have no normal microflora except:

• A)eyelids present a physical barrier to colonization
• B)viruses are unable to penetrate the conjunctiva
• C)lacrimal gland secretes fluid that continuously flushes the cornea
• D)tears contain an enzyme that breaks down bacterial cell wall

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Definitions:

Average Fixed Cost

The fixed costs of production divided by the quantity of output produced, which decreases as more units are produced.

Output Level

The quantity of goods or services produced by a firm, industry, or economy in a given time period.

Profit-Maximizing Output

The level of production at which a firm achieves the highest possible profit.

Marginal Cost

The cost of producing one additional unit of a product or service.