Final answer:
The adaptations to Savannah life can explain the anatomy and behavior of Homo erectus/ergaster. They evolved anatomical features such as an upright posture, longer legs, and reduced jaw protrusion to efficiently walk long distances and potentially hunt prey. Their diet also changed to include a variety of foods including meat, plants, nuts, and fruits.
Step-by-step explanation:
The adaptations to Savannah life can explain the anatomy and behavior of Homo erectus/ergaster. The shift from living in trees to living on the ground in a savanna habitat required changes in anatomy and behavior to adapt to the new environment. Homo erectus/ergaster evolved anatomical features such as an upright posture, longer legs, and reduced jaw protrusion to efficiently walk long distances and potentially hunt prey. This shift also led to changes in diet, with Homo erectus/ergaster consuming a variety of foods including meat, plants, nuts, and fruits.