You should consider if inside of the digestive tract is made up of cells. organs or systems that have hollow tube such as mouth, respiratory tract, digestive system, and GI tract are considered external environment because it is connected to outside. You can think of more examples of the external environment in the body.
External
The stomach is considered an organ, and it is part of the digestive system.
Gastro intestinal tract /systemThe digestive system.
The Digestive system, and the Respiratory system.
no it is not part of the digestive system.
Salivary gland is the external digestive gland associated with digestive system of humans.
Panda bears are considered to be both internal and external. Its digestive system which requires the panda bear to depend solely on bamboo for their main nutrients are considered to be internal. The external features of the animal include their senses and muscular system.
Both. Internal because it deals with the digestive system and external because of the look on your face and it could affect others.
This body system that is responsible for the exchange of gases between the blood and the external environment.
Information entering the central nervous system from the external environment is called external stimuli. External stimuli are factors which are detected by the body and communicated to the central nervous system such as temperature and scents.
For every Pikachu there is a wailord
circulatory system
the circulatory system
The rectum is part of the digestive system.
Rectum
A system, such as the digestive system, is composed of several organs. The digestive system includes the stomach, the small intestine, the large intestine, the liver and the pancreas, and a few other organs.
That would be the skin.