Question

why does bacterial toxin does not kill the bacteria but only the insects

Answer 1

Respuesta: An organism can produce an enzyme that acts as a catalyst that destroys the toxin. If the bacterium that produces the toxin have this enzyme and the insects do not, the bacteria can defend themselves against the toxin by destroying it, while the insects die. When a bacterium develops immunity against an antibiotic, it can be caused due to a mutation that leads to the production of an enzyme that destroys the antibiotic, rendering it useless.