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AdaptGasExchange

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Answer
gas exchange   diffusion of oxygen into the body and co2 out  
Which organisms exchange gases using moist skin   adult amphibians and cnidaria  
Which organisms exchange gases using tracheal system   insects and arachnids  
Which organisms exchange gases using lungs   mammals birds and reptiles  
Which organisms exchange gases using gills   fish crustacea juvenile amphibians  
why must gills have a larger surface area than the lungs of similar sized animal   less oxygen in water  


   

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