Detailed ExplanationThe digestive system is a group of organs that work together to break down food, absorb nutrients, and remove waste. It starts in the mouth, where food is chewed (mechanical digestion) and mixed with saliva containing enzymes that begin breaking down carbohydrates (chemical digestion). The food then travels through the esophagus to the stomach, where it is mixed with acids and enzymes to further break it down into a semi-liquid form called chyme.Next, chyme enters the small intestine, where most digestion and nutrient absorption occur. Here, enzymes from the pancreas and bile from the liver help break down fats, proteins, and carbohydrates. The nutrients are then absorbed into the bloodstream through the intestinal walls.Finally, the remaining undigested material moves into the large intestine, where water is absorbed, and waste is formed into feces to be eliminated from the body. ExampleFor example, when you eat a sandwich:In the mouth, chewing breaks the bread into smaller pieces while saliva starts digesting starch.In the stomach, proteins from meat are broken down by acids and enzymes.In the small intestine, nutrients like glucose, amino acids, and fatty acids are absorbed into the blood.In the large intestine, water is removed from the remaining waste before it leaves the body.
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