Choose the One Most Appropriate Answer for Each

question 67

Multiple Choice

Choose the one most appropriate answer for each.
-Alveoli

• A)Flexible windpipe reinforced with cartilage
• B)Detect carbonic acid in artery walls and signal the brain to stimulate faster and deeper breathing
• C)Oxygen-rich form of a respiratory protein
• D)Contains a pair of vocal cords
• E)Stimulate faster breathing in dangerous situations
• F)Part of the brainstem; controls breathing
• G)Throat passage behind the mouth
• H)One inhalation and one exhalation
• I)Connect trachea to lungs
• J)Flaplike structure that points upward allowing air to enter trachea, but blocks the larynx during swallowing
• K)Raise and lower the ribcage
• L)Microscopically small pockets lined with moist epithelium that function in gas exchange

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Definitions:

Short-Run Supply Curve

A graphical representation showing the relationship between the market price of a product and the amount of it that producers are willing to supply in the short term.

Marginal Cost Curve

A graph showing how the cost of producing one more unit of a good varies as the quantity of production increases.

Short Run

in economics, refers to a period during which at least one factor of production is fixed, and firms can adjust only the variable factors.

TVC

Total Variable Cost, which refers to all variable expenses that change with the level of output.