Examlex
Discuss how a mutation in DNA could be harmful or beneficial to an organism.
Helper T Cells
A type of T cell that plays an important role in the immune system by activating and directing other immune cells.
Cubic Millimeter
A unit of volume in the metric system equal to one millionth of a liter, often used in scientific measurements of very small quantities.
Retroviruses
A type of virus that inserts a copy of its RNA genome into the DNA of the host cell it infects, leading to the possibility of lifelong infection, such as HIV.
Lymphatic System
A part of the circulatory system and immune system that helps rid the body of toxins, waste, and other unwanted materials.
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