doesn't urea come from the blood? /not-a-biologisthence blood is punped directly to the bladder to be excreted.
such a waste.
(such a waste.
_null_,
Sat 23 Aug 2003, 18:32,
archived)
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doesn't urea come from the blood? /not-a-biologist
_null_,
Sat 23 Aug 2003, 18:32,
archived)
doesn't urea come from the blood? /not-a-biologist _null_,
Sat 23 Aug 2003, 18:32,
archived)