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→Structure and Function of Living Organisms
*[[Photosynthesis]]
*[[Root Absorption]]
====[[Gas Exchange Systems]]========[[Breathing System]]====*[[Mouth]]*[[Trachea]]*[[Bronchi]]*[[Bronchioles]]*[[Lung]]s**[[Alveoli]]=====[[Breathing]]=====*[[Exercise]]*[[Asthma]]*[[Smoking]]====[[Gas Exchange in Plants]]======*[[Photosynthesis]]*[[Stomata]]
====[[Reproductive System]]====
=====[[Female Reproductive System]]=====