Examlex
The main difference between active and passive immunity is the location in which the antibodies are formed.
United States
is a federal republic consisting of 50 states, a federal district, five major territories, and various possessions, primarily located in North America.
Developing Countries
are nations with a lower level of industrialization, lower living standards, and lower Human Development Index ratings compared to developed countries.
Major Causes
The primary or most significant reasons behind a phenomenon, event, or condition, which are integral to its understanding and resolution.
Nightmares
Disturbing dreams that often wake you up from sleep, typically associated with negative feelings such as anxiety or fear.
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