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Solve the equation.
Immune System
The complex network of cells, tissues, and organs that work together to defend the body against infections, diseases, and other harmful invaders.
Endocrine System
A network of glands in the body that produce and release hormones directly into the blood to regulate the body's growth, metabolism, and sexual development and function.
Sympathetic Nervous System
A component of the autonomic nervous system that activates the body's fight or flight response in preparation for action.
B Lymphocytes
A type of white blood cell that plays a critical role in the immune system by producing antibodies to fight infections.
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