Too freely used, and made too strong, tea and coffee may have a bad effect upon the nervous as well as the digestive system.
The reproductive and digestive systems, while somewhat improved, are not very markedly higher than those of annelids.
The digestive system of the lion is such that it cannot receive nourishment save through meat.
Summary. —The main structure in the digestive system is the alimentary canal.
According to him, there is a disharmony of our food and our digestive system.
