In the stomach, food undergoes chemical and mechanical digestion. Peristaltic contractions (mechanical digestion) churn the bolus, which mixes with strong digestive juices that the stomach lining cells secrete (chemical digestion). As food travels from your mouth into your digestive system, it's broken down by digestive enzymes that turn it into smaller nutrients that your body can easily absorb. This breakdown is known as chemical digestion.
The kind of asexual reproduction that the pieces of potato with buds in the soil grow more potatoes and the best answer would be vegetative reproduction. I hope you are satisfied with my answer and feel free to ask for more.
