Which Endocrine Gland Is the Main Center for Control of the Internal

question 13

Multiple Choice

Which endocrine gland is the main center for control of the internal environment?

• A) pineal and thymus
• B) hypothalamus
• C) thyroid and parathyroids
• D) adrenal cortex and adrenal medulla
• E) pancreas and gonads

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Definitions:

Kinked Demand Curve

A perceived market demand curve that suggests prices will rapidly decrease if a firm raises its prices above those of its competitors, but will not increase significantly if the firm lowers prices.

Marginal Revenue

The additional income received from selling one more unit of a good or service, crucial for decision-making regarding output levels.

Average Cost

The cost per unit produced, computed by dividing the total of fixed and variable costs by the quantity of units produced, synonymous with average total cost.

Concentration Ratio

An indicator used to measure the degree of market concentration, often defined by the market share of the largest firms within an industry.