Definition: "The mechanical and chemical break down of large, complex, non-diffusible food into small, simple, diffusible and soluble form is known as Digestion". 1)Mechanical digestion: "The break down of food without the help of any chemical or enzyme action is called mechanical digestion". 2)chemical Digestion: "The break down of food with the help of digestive juices or enzyme present in the digestive tract". Digestiv e System: "it is the system in whi...
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