Is blood plasma salinity the same as seawater?
No, but that proves evolution. "The answer is most definitely NOT that oceans were 1/3 as salty back then. It most definitely IS that the earliest vertebrates did evolve in salt water and then moved into fresh water....They have devised an extremely clever trick in kidney structure to allow salt transport pumps which really take salt back INTO the body from the urine but still manage to use them to produce urine much more concentrated that their body fluids and so excrete salt FROM the body."
posted by Brian B.
on Feb 10, 2007 -
Doctor found guilty of offering kidneys-for-cash...
though the case against him sounds a little dodgy. It raises all sorts of questions (not least about supposed organ rationining, something discussed in this link
) - what level of evidence should industrial tribunals require for a guilty verdict? How legitimate is the kind of journalism pursued here - is this entrapment? And even if it was, does it matter if the guy does say he can get what's needed?
posted by humuhumu
on Aug 30, 2002 -