Which One of the Following Is NOT a Mechanism That

question 55

Multiple Choice

Which one of the following is NOT a mechanism that aids lymph return to the heart?

• A) milking action of skeletal muscles
• B) pressure changes within the thorax
• C) the pumping action of the heart
• D) smooth muscle contractions within the lymphatic vessels
• E) presence of valves within the larger lymph vessels

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Definitions:

Marginal Revenue

The additional income received from selling one more unit of a good or service, critical in determining optimal production levels.

Average Variable Cost

The total variable cost divided by the quantity of output produced, indicating the variable cost of producing each unit.

Total Fixed Cost

Total Fixed Cost is the sum of all costs required to produce a product or service that does not change with the volume of output, such as rent, salaries, and equipment maintenance.

Profit-Maximizing Output

The point of production where a company reaches its maximum profit occurs when the marginal revenue is equal to the marginal cost.