Examlex
Edwin Hubble revolutionized astronomy when he made an accurate calculation of the distance to the Andromeda Nebula by spotting a rare Type Ia supernova.
Allergy
An immune system reaction to foreign substances (allergens) that are usually harmless to most people, leading to various symptoms.
Phagocytosis
A cellular process where cells engulf and digest particles or other cells, a crucial part of the immune response.
Activated T Cells
Immune cells that have been stimulated by an antigen to provide an immune response against infections and diseases.
Antibody Formation
The process by which the immune system produces antibodies in response to foreign substances (antigens) to neutralize or eliminate them.
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