Final answer:
Homo habilis had a larger brain size and a less prognathic jaw compared to earlier australopithecines. They also had more human-like hands and overall anatomy more similar to modern humans.
Step-by-step explanation:
Homo habilis differed from earlier australopithecines in several ways. H. habilis had a larger brain size, ranging from 600 to 750 cubic centimeters, compared to the australopithecines. They also had a less prognathic jaw, which means their jaw did not protrude as much. H. habilis also had more human-like hands, capable of dexterity and tool manipulation. Although they retained some features of earlier hominin species, such as long arms, their overall anatomy was more similar to modern humans.