Maps showing the locations of major ethnic groups in Kenya. Kenya is home to a large number of ethnic groups, including the Kikuyu (the largest single group at around 22%), the Luo, and the Maasai.. Kenya is home to a large number of ethnic groups, including the Kikuyu (the largest single group at around 22%), the Luo, and the Maasai.
Function of the Digestive System. The primary function of the digestive system is to break down the food we eat into smaller parts so the body can use them to build and nourish cells and provide energy. The digestive system is a series of hollow organs joined in a long, twisting tube from the mouth to the anus.
The digestive system also works in parallel with your excretory system (kidneys and urination). While the digestive system collects and removes undigested solids, the excretory system filters compounds from the blood stream and collects them in urine.