Cause # 3: Food poisoning. Food poisoning occurs when the food you eat is infected by bacteria. Examples of such areCampylobacter, Salmonella, Shigella, E. coli, Listeria, etc. Common symptoms of food poisoning are fever, abdominal pain, diarrhoea, uneasiness, nausea and vomiting. What you can do about it.
Return to main Ciliophora page. Paramecium are the most commonly observed protozoans and, depending on the species, they are from 100-350 um long. They are easily maintained and cultured and Paramecium caudatum (shown at the left) are characterized by a large macronucleus and a single compact micronucleus.
The most common types used in the classroom are the Paramecium caudatum and the Paramecium multimicronucleatum (because of its size). P. multimicronucleatum is the largest species and is slimmer and more pointed than P. caudatum. It has one macronucleus and 3 or 4 micronuclei.