Answer: Microorganism includes bacteria, protozoa, virus, fungi. They are invisible and are present in the environment everywhere say in water, soil, animals, human beings.
Step-by-step explanation:
Microorganism have a very important role in the food that we eat. Some of them are useful and some of them are capable of causing diseases in our body known as pathogens.
All the microorganism need a proper environment on which they grow. Conditions for pathogenesis are present when the food is not cooked or the prepared food is kept on a danger zone of 40-140° for four hours.
We should that microorganism can be beneficial or harmful.