SPIRAKEL - Organ pernafasan haiwan, GINJAL - Orgaan perkumuhan, TRAKEA - Organ pernafasan manusia, ALVEOLUS - Tisu pernafasan manusia, INSANG - Organ pernafasan haiwan, OKSIGEN - Sejenis gas penting, KLOROFIL - Bahan keperluan fotosintesis,

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