Much About the Immune System Is Unknown

question 4

Essay

Much about the immune system is unknown.For example, a great mystery is how the immune system differentiates between one's own cells and ________ .

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Definitions:

Crowd-Sourced

Content or ideas gathered from a large group of people, typically via the internet.

Blog Posts

Written articles or entries posted on a blog, typically reflecting personal opinions, experiences, or sharing information on specific topics.

Academic Conference

A professional gathering where researchers and scholars present and discuss their work, usually centered around a specific theme or field of study.

Writing Process

A series of actions or steps taken to produce a finished piece of writing, typically including prewriting, drafting, revising, editing, and publishing.