A small injected dose of a pathogen that stimulates the production of antibodies is:

• histamine
• interferon
• pathogen
• vaccine

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NGSS.MS-LS1-3

An organism that enters a life form and causes disease or sickness is a/an:

• macrophage
• pathogen
• vaccine
• flu

This refers to the type of immunity developed from exposure to a pathogen:

• active acquired immunity
• passive acquired immunity
• innate immunity
• attenuated immunity

The first line of localized defense of the immune system is:

• lymphatic response
• infection response
• auto-immune response
• inflammatory response

A type of cell that "digests" pathogens is known as a/an:

• helper T cell
• macrophage
• suppressor T cell
• plasma cell

This gland, located anterior to the heart, but posterior to the sternum, is the lymphatic site where T cells are produced and mature:

• tonsils
• trachea
• thymus
• thalamus

The first line of defense against antigen is the _________ system.

• respiratory
• digestive
• integumentary
• lymphatic

The organism that is infected by a pathogen/antigen is known as the:

• survivor
• infectee
• source
• host