why can't animals besides amphibians absorb oxygen through their skin?

Subject: why can't animals besides amphibians absorb oxygen through their skin?

Date: Fri Jul 8 17:27:26 2005
Posted by No name entered.
Grade level: 10-12 School: No school entered.
City: No city entered. State/Province: No state entered. Country: No country entered.
Area of science: Zoology
ID: 1120861646.Zo

Message:


Many species of amphibians absorb oxygen through their skin, which is moist and 
is served by many blood vessels. Why can't reptiles, birds, and mammals 
supplement their oxygen intake by absorbing it through the skin?

Re: why can't animals besides amphibians absorb oxygen through their skin?

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