Examlex
The physical half-life of technetium-99 is approximately
Immune System
The complex network of cells, tissues, and organs that protects the body from pathogens and other foreign substances, distinguishing them from the body's own healthy tissue.
Cancer
A disease characterized by the uncontrolled growth and spread of abnormal cells in the body.
General Adaptation Syndrome
A model describing the body's physiological responses to stress through stages of alarm, resistance, and exhaustion.
Exhaustion Stage
The final stage of the stress response where the body's ability to resist stressors is depleted, leading to burnout or health issues.
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