Which part of the body does digestion begin at?Group of answer choicesThe mouthThe oesophagusThe stomachThe large intestine

Digestion begins in the mouth. Here's a step-by-step explanation:

1. The process of digestion starts in the mouth. When you chew your food, your teeth break it down into smaller pieces.

2. Saliva, produced by the salivary glands in your mouth, mixes with these small pieces of food to start breaking them down further. Saliva contains an enzyme called amylase that starts to break down carbohydrates in the food.

3. The tongue helps to mix the food with saliva and form it into a ball (bolus).

4. When you swallow, the bolus moves down the oesophagus to the stomach through a process called peristalsis.

5. In the stomach, the food is mixed with stomach acid and digestive enzymes to break it down into a liquidy mixture called chyme.

6. The chyme then moves into the small intestine where it is broken down further by enzymes and absorbed into the bloodstream.

7. Finally, any undigested food passes into the large intestine where water is absorbed and the remaining waste is excreted from the body.

So, the correct answer to your question is "The mouth".