Examlex
Determine whether the sequence is geometric.
-2, 6, 18, 54, 162, ...
Natural Immunity
The innate resistance against pathogens that an individual is born with, as a result of genetic factors or passed through maternal antibodies.
Chickenpox
A highly contagious viral disease characterized by an itchy rash and red spots, primarily affecting children.
Tetanus Toxoid
A vaccine used to provide immunity against tetanus, a serious bacterial infection.
Sterile Field
A specified area that is considered free from microorganisms.
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