Question

make a project of the digestive system

Answer 1

1.the aliment canal begins with the mouth.
2.the food is processed in the mouth to generate particles with small size.
3.such crushed food is wetted with saliva secreted by the salivary glands so the food can smoothly pass through the soft lining of alimentary canal.
4.the food we take is of complex nature.
5.it is converted simpler molecules with the help of biological catalysts known as enzymes.