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 ... I just had
one question-does the carbon dioxide gradient work in the ...
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
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 ...
An introduction to the biology of gills and respiration in fish. ... if they could get the
oxygen they need from the water, and this is exactly what they do. .... and a series
of branchial flaps, one for each set of gill but which work in a similar way.
Aug 10, 2007 ... This has to do with osmosis, which is related to diffusion discussed ... Well, shark
gills work exactly like those of other fish with one exception.
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 ...