Helper T cells ________.
A. bind tightly to target cells and release a lymphotoxin called perforin
B. often function to decrease the immune response
C. release B7 proteins
D. function in the adaptive immune system activation
Answer:D
Helper T cells ________.
A. bind tightly to target cells and release a lymphotoxin called perforin B. often function to decrease the immune response C. release B7 proteins D. function in the adaptive immune system activation