Mammals: Endo-Skeletal, Digestive, Respiratory and Bother Systems in Mammals
The following points highlight the top seven types of system in mammals. The types are: 1. Endo-Skeletal System 2. Digestive System 3. Respiratory System 4. Blood Vascular System 5. Nervous System 6. Excretory System 7. Reproductive System. Type # 1. Endo-Skeletal System: Skull: Variation in the structure of skull is present amongst the different members of the class. But all [...]