View source for Gas Exchange Systems

==Key Stage 3==
===Meaning===
Gas exchange systems are the organ systems in plants and animals used to exchange [[Oxygen]] and [[Carbon Dioxide]].

===About Gas Exchange Systems===
: [[Amphibian]]s, [[Bird]]s, [[Mammal]]s and [[Reptile]]s all have [[lung]]s in their '''gas exchange systems'''.
: [[Amphibian]]s and [[Fish]] both have gills in their '''gas exchange systems'''.
: [[Plant]]s all have [[leaf|leaves]] in their '''gas exchange systems'''.