Components of the digestive system The alimentary canal Digestive glands Human digestive system The digestive system of a rat Peristalsis The structure.
The Digestive System 48. Types of Digestive Systems Heterotrophs are divided into three groups based on their food sources -Herbivores are animals that.
Digestive System & Diet 9.1-9.4. All organisms need to obtain energy from essential nutrients. Heterotrophs get energy from other organisms.
Digestive System & Diet
