Derived Characteristics
What is the longitudinal, flexible rod between the digestive tube and nerve cord?
What is the Notochord.
This lineage produced the turtles, crocodiles, pterosaurs, and dinosaurs?
What are the archosaurs?
What are the extinct species that are more closely related to humans than to chimpanzees?
What are Hominins?
What developed into parts of the ear, head, and neck in the Tetrapod?
What are the Pharyngeal Slits? What are the Clefts?
The era the Crocodillians date back to?
What is the Late Triassic era?
1. Mammary glands, which produce milk
2. Hair and a fat layer under the skin for insulation
3. Kidneys, which conserve water from wastes
4. Endothermy and a high metabolic rate
5. Efficient respiratory and circulatory systems
6. A large brain-to-body size ratio
7. Extensive parental care
8. Differentiated teeth
What are the derived characteristics of mammals?