teekakesxz120 teekakesxz120
  • 25-04-2018
  • Biology
contestada

Which line of defense includes active immunity?

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RylanRobinson20
RylanRobinson20 RylanRobinson20
  • 25-04-2018
If Im on the right track i believe it is A system that relies on antigens which are specific substances found in foreign microbes. Most antigens are proteins that serve as the stimulus to produces an IMMUNE response. 
HOPE THIS HELPS!!!
:)
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elonap5071
elonap5071 elonap5071
  • 28-04-2020

Answer:

secound

Explanation:

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