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Re: breathing



Dinogeorge  wrote;

>Gills don't remove the oxygen from the water molecules (which must usually
be done electrostatically), they remove atmospheric oxygen that is dissolved
in the water, of which there is far less than 50%(!).<

Of course.  Minimum acceptable dissolved oxygen concentrations for fish are
in the 5-9% range....(this thread is obviously gasping for air)

PTNorton@msn.com
www.geocities.com/capecanaveral/galaxy/1962/