Which immune system cells are attracted to the chemicals secreted by helper T cells?
macrophages and cytotoxic T cells
cytotoxic T cells and memory cells
memory cells and B lymphocytes
cytotoxic T cells and B lymphocytes
Answers
Answered by
2
Answer:
on helper t cells is a protein called CD4 which binds MHC class II complexes so allows them to bind B cells presenting antigents and activate them, but they will not bind infected cells presenting antigents......
Answered by
3
Answer:
lymphocytes
B-cells
stem cells
Explanation:
i took the test
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