Which of the following is a part of immune system ?
(A) Lymphocytes
(B) Erythrocytes
(C) Plateles
(D) None of them
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lymphocytes is the answer
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From the above given options, the part which forms immune system is A) Lymphocytes.
Lymphocytes are the white blood cells that forms the main part of immune system. They provide innate and adaptive immunity.
Lymphocytes are of two types B lymphocytes which mature in the bone marrow cell and T lymphocyte that matures at Thymus.
B cells forms antibodies and a memory cell when encountered with antigen.
Where T cell gives cell mediated immunity and has cytotoxic, killing activity on antigens.
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