Antigen is a substance which |
|||
(a) |
lowers body temperature |
(b) |
destroys harmful bacteria |
(c) |
triggers the immune system |
(d) |
is used as an antidote to poison |
Antigen is a substance which |
|||
(a) |
lowers body temperature |
(b) |
destroys harmful bacteria |
(c) |
triggers the immune system |
(d) |
is used as an antidote to poison |