Which of the Following Is True for Cross-Reactions? They

question 18

Multiple Choice

Which of the following is true for cross-reactions? They

• A)can hurt us because they can be related to autoimmune disease
• B)are the reason that we have anti-A or anti-B red blood cell antibodies
• C)cause the need for a very specific assay for HCG for pregnancy testing
• D)are used in vaccines
• E)can do all of the above

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Definitions:

Multiplier

A factor by which an initial change in spending will alter total economic output by more than the initial monetary amount.

Marginal Propensity

A measure of how much an individual's consumption changes when their income changes.

Spending Multiplier

A concept in economics that refers to the ratio of a change in output to the initial change in spending that brought it about, indicating the ripple effect of spending through the economy.

Price Level

An index of the average prices of goods and services in an economy over time, indicating inflation or deflation trends.