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Most sub-Saharan African religions
Immune System
A complex network of cells, tissues, and organs that work together to defend the body against attacks by foreign invaders such as bacteria, viruses, and cancer cells.
Immunosuppression
The reduction of the efficacy of the immune system's response, naturally or through medical intervention.
Conditioned Response
A conditioned reaction to a once neutral stimulus that has been paired with an unconditioned stimulus.
Acquisition
The initial stage of learning or conditioning in which a response is established or a skill is begun to be learned.
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