Social Sciences, asked by mehakShrgll, 3 months ago

ᴡʜᴀᴛ ɪs ᴀɴᴛɢᴇɴs..ɪs ɪᴛ ʜᴇʟᴘғᴜʟ...​

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Answered by appu7491
1

Answer:

an antigen is a substance to which immune system can respond. for example:-components of the bacterial cell wall can trigger several and immediate attacks by neutrophils.

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