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Biology, 18.02.2020 20:09 googoomylizard
Terrestrial vertebrates use the urea cycle to convert the ammonium ion to urea such that the urea can be excreted. In the production of urea, only one of the nitrogens in the product comes from ammonium ions. What is the source of the other nitrogen?
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Terrestrial vertebrates use the urea cycle to convert the ammonium ion to urea such that the urea ca...
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