The main branches of the immune system are

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Quizplus · Accepted Answer

The main branches of the immune system are the humoral and the cellular. The humoral immune response involves B cells, which produce antibodies that bind to antigens and neutralize them. The cellular immune response involves T cells, which recognize and destroy virus-infected or cancerous cells. Leukocytes and macrophages are types of immune cells that are involved in both the humoral and cellular responses but are not considered distinct branches of the immune system. Option D is incorrect as bacteria, viruses, and parasites are not branches of the immune system, but rather types of pathogens that the immune system responds to.

The Main Branches of the Immune System Are