Examlex
What term is used to describe atoms of the same element that have different masses?
Leukocytes
White blood cells that are part of the immune system, helping the body to fight infections and other diseases.
White Blood Cells
Cells of the immune system involved in protecting the body against both infectious disease and foreign invaders.
Immune System Efficiency
The effectiveness with which the immune system identifies, responds to, and eliminates pathogens and foreign substances.
Organ Transplants
Medical procedures in which an organ is removed from one body and placed in the body of a recipient, to replace a damaged or missing organ.
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