According to Figure 35.5, approximately when did a second exposure to antigen occur? Figure 35.5

Name: According to Figure 35.5, approximately when did a second exposure to antigen occur? Figure 35.5
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Question

According to Figure 35.5, approximately when did a second exposure to antigen occur?  Figure 35.5

Quizplus · Accepted Answer

In Figure 35.5, we can see that the peak of the secondary immune response (represented by the blue line) occurs at around 28 days, indicating that a second exposure to the antigen likely occurred around that time. Therefore, the best answer is D, at 28 days.