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Biology 7 Online
OpenStudy (anonymous):

What leads to long-term immunity in mammals? Exposure to an antigen Action of an antibody Barriers

OpenStudy (anonymous):

@Ail.A

OpenStudy (anonymous):

B) antibody has a memory power called memory B- cell which store information of the epitope( part of pathogen which interacts with antibody) of pathogen and immediately provide protraction to the body when bacteria re-inter into the body and provide quick immunity to the host. so it is life time immunity.

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