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Ira Lisetskai [31]
4 years ago
12

What is the correct definition of an antigen? Please help

Health
2 answers:
mariarad [96]4 years ago
7 0

Answer:

B. a substance that sends the immune system into action

Explanation:

pickupchik [31]4 years ago
6 0
B. A substance that sends the immune system into action.
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