What are the primary participants in the immune system?
a) Lymphoblasts and gamma globulins
b) T- and B- cell lymphocytes
c) Macrophages and memory cells
d) Stem cells and monocytes
Answer: B
What are the primary participants in the immune system?
a) Lymphoblasts and gamma globulins
b) T- and B- cell lymphocytes
c) Macrophages and memory cells
d) Stem cells and monocytes
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