Multiple Choice
A certain cell type has existed in the blood and tissue of its vertebrate host's immune system for over 20 years. One day, it recognizes a newly arrived antigen and binds to it, subsequently triggering a secondary immune response in the body. Which of the following cell types most accurately describes this cell?
A) T cell
B) memory cell
C) secondary cell
D) B cell
Correct Answer:

Verified
Correct Answer:
Verified
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