Examlex
Historians organize Egyptian history using the system of dynasties.
Red Blood Cell
A cell that carries oxygen from the lungs to the body's tissues and returns carbon dioxide from the tissues back to the lungs.
Abbreviation
An abbreviation is a shortened form of a word or phrase used to save space or avoid repetition.
Immune Response
The body's defense mechanism against foreign substances, involving both specific and non-specific components.
Helper T Cells
A type of T cell that plays an important role in the immune system by helping activate the responses of other immune cells.
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