By cleaning drinking water and washing hands with soap
I'm not entirely sure how protozoa reproduces, but I'm pretty sure it involves reproduction (sexctual reproduction).
Protozoa.
Yes, protozoa do have cell nucleus.
Spreading is done carefully on agar plate as we have to prevent even a minute to minute contamination and also we have to check that weather the spreading is done equally or not while not demaging the layer of agar.
The water will move into the protozoa.
I'm not entirely sure how protozoa reproduces, but I'm pretty sure it involves reproduction (sexctual reproduction).
Squash them
The ideal way to prevent people from spreading any infectious disease would be to place them in a hospital and treat them, until they are cured.
People are immunised to prevent the spreading of disease
By covering your mouth with with the inside of your arm.
To prevent Communism from spreading.
We can cover our food to prevent the housefly from landing on the food and contaminating the food.
By spreading water
benign
To help prevent the spreading of bacteria and germs
to prevent hackers, to prevent the spreading of viruses etc
Protozoa.