When is the thymus most active? O during middle age O during childhood during old age during early adulthood (twenties) equally active throughout life
When is the thymus most active? O during middle age O during childhood during old age during early adulthood (twenties) equally active throughout life
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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Immune system protects the body from foreign molecules. These foreign molecules are pathogen or antigens. There are two types of organs in immune system. These are primary lymphoid organ and secondary lymphoid organ.
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