chelgado9ren
chelgado9ren chelgado9ren
  • 11-06-2016
  • Biology
contestada

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

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tunn tunn
  • 14-06-2016
exposure to antigen as this input brings the total to five answers. y or n
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hiving hiving
  • 22-04-2021

Answer:

A. Exposure to an antigen

Explanation:

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