Positive Economic Profits Exist for a Firm in the Long

question 45

Multiple Choice

Positive economic profits exist for a firm in the long run if price is above

• A)long-run average cost.
• B)long-run marginal cost.
• C)long-run total cost.
• D)long-run variable cost.

---

Definitions:

Sexual Differentiation

The process by which the sexual organs and secondary sex characteristics develop differently in males and females, influenced by genetic and hormonal factors.

Trimester

One of the three roughly equal periods into which a pregnancy is divided, each lasting about three months.

Brain Structures

The various parts of the brain, each responsible for different functions, such as the cerebrum for thought and action, the cerebellum for movement, and the limbic system for emotions.

Lateral Hypothalamus

An area of the brain thought to control hunger and thirst; destruction of this area can cause an animal to refuse food and water.