Influenza Is Caused by a Virus

question 31

Multiple Choice

Influenza is caused by a virus. This virus is an example of a broad category of disease-causing organisms called __________.

• A)pathogens
• B)antibodies
• C)antigens
• D)leukocytes

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Definitions:

Motility

The ability of an organism or fluid to move spontaneously and actively, consuming energy in the process.

Hormone Release

The process by which hormones are secreted from glands and then enter the bloodstream to regulate various physiological functions.

Enteric Plexus

A network of neurons located in the gastrointestinal tract walls that governs the function of the gastrointestinal system, often referred to as the "second brain."

Myenteric Plexus

A network of neurons located in the walls of the gastrointestinal tract, involved in the control of muscle contractions and gut motility.