Which of the following is evidence that the human brain has increased in size since the time of the Australopithecus?
A) The overall size of the Australopithecus' skull is smaller.
B) The area at the front of the skull has expanded in modern humans.
C) Fossils of the Australopithecus' brains are smaller than the brains of modern humans.
D) both a & b.

Question

Quizplus · Accepted Answer

Both option a (the smaller overall size of the Australopithecus' skull) and option b (the expansion of the front of the skull in modern humans) provide evidence that the human brain has increased in size since the time of the Australopithecus. Fossil evidence also supports option c, but it was not selected as the best choice because it only provides evidence for one specific aspect (brain size) rather than the overall increase in brain size.

Which of the Following Is Evidence That the Human Brain