How Do Interferons Work Within the Immune System

question 42

Multiple Choice

How do interferons work within the immune system?

• A) They inject their targets with lethal chemicals.
• B) They prevent viruses from replicating.
• C) They engulf bacteria and foreign particles.
• D) They create a hot environment unfavorable to bacteria.

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Definitions:

Crude Birth Rate

The total number of live births per 1,000 population in a given year.

Crude Death Rate

A statistical measure representing the total number of deaths per year per 1,000 individuals in a population.

Immigration

The movement of people from one country to another with the intention of settling permanently or temporarily in the new country.

Population Growth

The increase in the number of individuals in a population, often measured by the birth rate minus the death rate, immigration, and emigration.