Which of the following components is NOT asso | vedclass

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(D) The immune system consists of lymphoid organs,tissues,cells,and soluble molecules like antibodies that help to recognize foreign antigens. $1$. Ly

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Antigens

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(D) The immune system consists of lymphoid organs,tissues,cells,and soluble molecules like antibodies that help to recognize foreign antigens. $1$. Lymphoid organs (like bone marrow and thymus) are sites where lymphocytes originate and mature. $2$. Lymphocytes ($B$-cells and $T$-cells) are the primary cells of the immune system. $3$. Antibodies are proteins produced by $B$-lymphocytes in response to pathogens. $4$. Antigens are foreign substances that trigger an immune response,but they are not a 'component' of the immune system itself; rather,they are the targets that the immune system acts against. Therefore,antigens are not considered a part of the immune system's structural components.

Which of the following components is $NOT$ associated with the immune system?

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