Which of the following is an example of a biological system?
A. Biology textbook
B. The universe
C. Human digestive tract
D. A car engine
Answer: C. Human digestive tract
A biological system is essentially an intricate web of components that are connected and perform important functions in their respective living organisms. The human digestive tract may serve as a superb embodiment of a biological system.
The digestive tract, a long tube that runs throughout the body and consists of the various organs including mouth, esophagus, stomach, small intestine, large intestine, and rectum, is highly important for the whole body’s health. These factors interact well in each other to digest food, absorb useful elements from it, and to eliminate waste.
There is the diverse and significant position of each part of the digestive tract in the field of digestion that includes the mechanical and chemical breaking down of the foods, the absorption of essential nutrients and the elimination of the left undigested material. The human digest tract indicates the complexity and interdependence that exists among biological system within plants.