Which of the following contain nitrogen?

monosaccharides
amino acids
fatty acids
polysaccharides

Amino acids contain nitrogen

Explanation:

Monosaccharides and polysaccharides are carbohydrates that are composed of carbon (C), hydrogen (H) and oxygen (O)

Fatty acids are carboxylic acids with a long hydrocarbon chain terminating in a carboxylic acid group. These are again composed of C, H and O

Amino Acids are organic compounds containing both carboxylic acid (COOH) and amino group (NH2). Thus amino acids contain C,H, O and N

pla·gia·rism

/ˈplājəˌrizəm/

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noun

the practice of taking someone else's work or ideas and passing them off as one's own.

explanation:

some sources quote the lethal dose, for an average 170lbs opiate-naive individual is between 75 and 375 mg