Which Statement About Memory Cells Is True

question 148

Multiple Choice

Which statement about memory cells is true?

• A) Division produces memory cells but not effector cells.
• B) They live for shorter periods of time than effector cells.
• C) They are responsible for the rapidity and efficiency of secondary immune responses.
• D) They are produced during clonal deletion.
• E) They divide at a rapid rate when not responding to an immunological challenge.

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Definitions:

Total Revenues

The total amount of income generated by the sale of goods or services related to the company's primary operations.

Economic Profits

The surplus or profit earned by a firm over and above the total costs of production, including both explicit and implicit costs, signifying an above-normal return.

Accounting Profits

The financial gain calculated by subtracting total explicit costs from total revenue, using generally accepted accounting principles (GAAP).

Perfectly Competitive Industry

This refers to a market structure where numerous small firms compete against each other with no single company dominating the market, selling identical products, and having easy market entry and exit.