How does nitrogen in fertilizer runoff affect aquatic ecosystems

Aboy with an extra x chromosome probably has which of the following syndromes?

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?

Which nucleotide component contains nitrogen