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==Key Stage 3==
===Meaning===
The [[Breathing System ]] is an [[Organ System|organ system]], that includes [[lung]]s , used to [[Absorb (biology)|absorb]] [[Oxygen]] into the [[blood]] and remove [[Carbon Dioxide]] from the [[blood]].
===About the Breathing System===
| style="height:20px; width:400px; text-align:center;" |An animation of the lungs inhaling and exhaling.
|}
==Key Stage 4==
===Meaning===
The [[Breathing System]] is an [[Organ System|organ system]], used to [[Absorb (biology)|absorb]] [[Oxygen]] into the [[blood]] and remove [[Carbon Dioxide]] from the [[blood]].