00:01
Which of these is true of t cells? is it a, they have specific receptors.
00:07
B, they are more than one type.
00:08
C, they are responsible for cell -mediated immunity.
00:12
D, they stimulate antibody production by b cells, or e, all of the above.
00:16
So t -cells are very variable.
00:18
Now, there's a bunch of different types, so b is correct.
00:23
There are the helper t -cells, the cytotoxic t -cells.
00:27
They have a variety of rules...