Name any two groups of micro-organisms from which antibiotics could be extracted.

(N/A) Antibiotics are chemical substances produced by certain micro-organisms that can kill or inhibit the growth of other disease-causing micro-organisms.
Two major groups of micro-organisms from which antibiotics are extracted are:
$1$. $Bacteria$ (e.g.,$Streptomyces$ species used to produce streptomycin).
$2$. $Fungi$ (e.g.,$Penicillium$ species used to produce penicillin).