Final answer:
The function of the digestive system is closely related to the characteristics of life as it allows organisms to obtain nutrients from food, maintain homeostasis, and eliminate waste material from the body.
Step-by-step explanation:
The function of the digestive system is closely related to the characteristics of life. The digestive system allows organisms to obtain nutrients from food, which is essential for survival. It plays a vital role in maintaining homeostasis by breaking down food into smaller molecules that can be absorbed and used by the body.
For example, carbohydrates are broken down into simple sugars by enzymes in the digestive system. These sugars are then absorbed into the bloodstream and transported to cells, where they are used as an energy source. Similarly, proteins are broken down into amino acids, which are used for growth and repair of tissues.
The digestive system also eliminates waste material from the body through the process of defecation. This function helps maintain the balance of nutrients and removes toxins from the body.