Most fish exchange gases using gills on either side of the pharynx (throat). Gills
are tissues ... Higher vertebrates do not develop gills, the gill arches form during
fetal development, and lay the...
Sep 7, 2011 ... Gills work on the same principle as lungs. ... Freshwater fish tend to have less of
these cells than do their seafaring counterparts. This ...
www.ask.com/youtube?q=How Do Gills Work?&v=cVFqME-NW9s
Mar 12, 2012 ... Description of Countercurrent Exchange in fish gills as an example of form
relating to function in biology. ... I just had one question-does the carbon dioxide
gradient work in the same .... How do our kidneys make urine?
Unlike land animals, which have lungs to take in oxygen from the air, fish have
gills to breathe in the oxygen contained in water. This process of breathing
Apr 26, 2007 ... Gills are the equivalent of a mammal's lungs, says Jeffrey Malison, director of the
aquaculture program at University of Wisconsin—Madison.
Interesting ques ! for starters here - how do gills extract oxygen from water -
Search results The gills are composed of comb-like filaments, the gill lamell...
Oct 29, 2011 ... To do this they use an arrangement of ﬁlaments on either side of their neck called
gills. Fish gulp in oxygenated water and force it through their ...
Do all sea creatures have gills? ... The lungs of mammals would not work very
well for a fish, because one ... Gills are feathery organs full of blood vessels. A
Larger things, like fish, have to collect all the oxygen in one area (gills for the fish)
and transport it to every cell ... So they don't work well and the fish suffocates.
However, they don't get oxygen freely like we do on land. They use the oxygen
contained in the water for that, employing the gills to exchange the oxygen and ...