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Comparative Human and Bird Digestive & Respiratory Systems
Comparative Physiology: Human and Bird
The human body uses food and liquids for energy, growth, maintenance and repair. Before it can use food and liquids for these purposes, it must go through a process called digestion, which is carried out by the digestive system. The digestive system consists of the following organs: Mouth, salivary glands, oesophagus, liver, gall bladder, pancreas, stomach, large and small intestines, duodenum, rectum and the anus.
