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Cells of the immune system are able to respond to the presence of invading organisms because they recognize the?

A. Antigens on invaders
B. antibodies on pathogens
C. DNA pattern in the nuclei of viruses
D. antibodies released from microbes

User Marc Tarin
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2 Answers

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C DNA pattern in the nuclei of viruses
User Jonatan Anauati
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A antigens on invadors
User Tom Malkin
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