Why Does the Immune System Have Macrophages,phagocytes,and Natural Killer Cells

question 25

Multiple Choice

Why does the immune system have macrophages,phagocytes,and natural killer cells?

• A) in order to create a kind of immunological memory for a specific intruder
• B) in order to fight off any foreign substance,including those never before encountered
• C) in order to relay information to the brain that there is an infection
• D) in order to be the first line of defense,catching dust,microbes,and other foreign matter before it penetrates the skin

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Definitions:

Psychometric

Relating to the science of measuring mental capacities and processes.

Stereotype Threat

The risk of confirming negative stereotypes about one's social group, which can impair performance.

Negative Stereotypes

Oversimplified and generally negative assumptions about a group of people based on their membership in that group.

Cognitive Processes

Mental activities involved in acquiring, storing, retrieving, and using information, including perception, memory, language, and problem-solving.