Question

what is the meaning of causative organism​

Answer 1

$\huge\bold\green{Answer!}$

The term disease causative agent usually refers to the biological pathogen that causes a disease, such as a virus, parasite, fungus, or bacterium.

Technically, the term can also refer to a toxin or toxic chemical that causes illness.

$\huge\bold\blue{Explanation!}$

The word causative agent refers to harmful and disease causing substance so causative microorganisms are pathogenic, disease causing microorganism.

Most common examples of pathogens that cause disease in human beings are Salmonella, Listeria, E coli. These are bacterial pathogens.