Blood is what type of a contaminant? Chemical , Biological, Physical.

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Biological

Explanation:

Biological contamination refers to food that’s contaminated by substances produced by living creatures – such as humans, rodents, pests or microorganisms. This includes bacterial contamination, viral contamination or parasite contamination that’s transferred through saliva, pest droppings, blood or faecal matter.

a

explanation:

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the constitution gives congress the power to regulate commerce "among" the several states.