The Secondary Response of the Immune System to an Infectious

question 29

Multiple Choice

The secondary response of the immune system to an infectious agent involves

• A) fewer cells than the antigen challenge, as the response has become more specific.
• B) more cells than the antigen challenge, due to the proliferation of memory cells.
• C) amnesia of past exposures, so that a perfectly adapted response can be generated to the new pathogen.

---

Definitions:

Present Value

The current valuation of future monetary sums or cash flow streams, using a given return rate for discounting.

Capital Cost Allowance (CCA)

A taxable expense in Canada that a business can claim for the depreciation of tangible property.

Required Rate Of Return

The lowest annual return percentage that persuades individuals or companies to commit capital to a particular project or security.

Net Working Capital

The difference between a company's current assets and current liabilities, indicating its short-term liquidity.