define pathogen and immune system;
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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define pathogen and immune system;
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Step 1
- The infectious organism that has the ability to cause disease is termed a pathogen. Pathogens are generally microscopic organisms like bacteria, fungi, and viruses, and they multiply quickly inside the animal's body to cause disease.
- The immune system is defined as the biological processes' complex network that provides resistance to an organism against a toxin or an infection. It comprises various components like immune cells, lymph nodes, and thymus gland and functions to detect, respond, and eliminate the foreign antigen from self-antigens.
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