Answer:
Food and liquids are processed by the digestive system, after nutrients are absorbed during digestion, the urinary tract excretes waste products. This maintains oxygen homeostasis by making sure that CO2 is removed.
Step-by-step explanation:
Homeostasis is the process of maintaining the chemical balance in all living things. The foods consumed and processed through the digsetive system and brought into the small intestines wear essential vitamins and bacterias are abosored into the lining; this is critical for the wellbeing of the organism and the continuation of homeostasis.