‘Pathogens' are
Substances produced against any disease causative
Chemical substances produced by the host cells to kill the parasite animal
Disease spreading factors
Cells which kill the parasites
A condition that occurs when the immune system mistakenly attacks and destroys healthy body tissue is called
Definitions / Explanation : $B$-lymphocytes & $T$-lymphocytes
Acquired Immunity mediated by which of the following
Explain Acquired immunity.
Give differences: $T$-lymphocytes and $B$-lymphocytes