Biology, asked by jaanarwah751, 1 month ago

Choose the correct statements w.r.t. immune system of the body.
A. Helper T-cells activate cell mediated immunity by acting as antigen presenting cells.
B. Antibody present in saliva contains four antigen binding sites.

C.Both IgG and IgA antibodies impart passive immunity to the foetus.

D Memory cells are produced as a part of humoral as well as cell mediated immunity, against a particular antigen during primary immune response.

Answers

Answered by shashwatshaurya

0

Explanation:

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