Compléter biological contaminants Version en ligne biological contaminants game par Janell Cossai 1 yeasts cross Mould old contamination viruses digestive parasite contaminated air Salmonella process pollution preparation food Waste preparation Examples of bacteria : E . coli , Listeria , and Examples of : Norovirus and astrovirus A is a plant or an animal organism that , if consumed , lives in your system . Moulds and grow on old foods where there is moisture present . could also produce toxins which make foods which are moulding not safe to consume . When crops are growing in areas of higher , contaminants in the air can also contaminate the foods . During , one must make sure to work in clean air environment . Raw foods ad cooked foods / read to eat foods should never touch each other to avoid . Effort should be made throughout the . contains a lot of bacteria , especially if it is waste . If waste comes into contact with food during preparation , or cross contamination with the waste occurs , the food could be .
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