Final answer:
Australopithecines and Early Homo had adaptive strategies such as bipedalism, small jaws and teeth, sagittal keel on the skull, and human-like feet with arches and ankles.
Step-by-step explanation:
The adaptive strategies of Australopithecines and Early Homo include bipedalism, small jaws and teeth, sagittal keel on the skull, and human-like feet with arches and ankles. These adaptations allowed them to walk on two feet and have a more efficient locomotion. They also had a broader pelvis, longer legs, and arched feet, which made them more efficient at bipedal locomotion. However, their skulls still differed from modern humans, with larger teeth, a sloping forehead, and a relatively small brain.