You have been working in the barn with baby calves that have been having severe diarrhea. you now are having a severe watery diarrhea. which parasite would be most likely for you to have contracted from these calves?

Cryptosporidium

Explanation:

Cryptosporidium is referred to as the microscopic and imperceptible parasite which tends to causes diarrheal disease known as the cryptosporidiosis. Most of the times the parasite cryptosporidium and the disease cryptosporidiosis are commonly referred to as Crypto. There are known to be several species of the parasite cryptosporidium which tends to infect cattle, some of them further infect the humans.

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answer; john stuart mill's principle of utility is your answer; /// good luck