b) Fossil evidence shows that it was not until the evolution of Homo erectus that the brain size in hominins really began to increase relative to body size. The range in brain size of early Homo erectus to late Homo erectus increased from 700 cc to 1000 cc (similar to the gram scale on the y-axis). This includes most of the 3x increase of brain size from Australopithecus to Homo sapiens. But Homo erectus was about the height of modern humans. Does the graph show that brain size in H. erectus increased faster than body size even though H. erectus was taller than Australopithecus? How can you tell? 8. c) Homo floresiensis (the 3.5 ft-tall “Hobbit” from Flores Island in Indonesia) had a brain similar in size to that of a chimpanzee. But H. floresiensis used tools, including bows and arrows, to hunt pygmy elephants. Is it a good idea to make a cast of the interior of the brain case in skulls of H. floresiensis in the hope that the morphology of the brain of H. floresiensis might indicate differences from that of the chimpanzee? Why or why not?

Hello, I need help answering 8b & 8c using the graph below. Pls & thank you! 8. b) Fossil evidence shows that it was not until the evolution of Homo erectus that the brain size in hominins really began to increase relative to body size. The range in brain size of early Homo erectus to late Homo erectus increased from 700 cc to 1000 cc (similar to the gram scale on the y-axis). This includes most of the 3x increase of brain size from Australopithecus to Homo sapiens. But Homo erectus was about the height of modern humans. Does the graph show that brain size in H. erectus increased faster than body size even though H. erectus was taller than Australopithecus? How can you tell? 8. c) Homo floresiensis (the 3.5 ft-tall “Hobbit” from Flores Island in Indonesia) had a brain similar in size to that of a chimpanzee. But H. floresiensis used tools, including bows and arrows, to hunt pygmy elephants. Is it a good idea to make a cast of the interior of the brain case in skulls of H. floresiensis in the hope that the morphology of the brain of H. floresiensis might indicate differences from that of the chimpanzee? Why or why not? Photo reference: Futuyma, D. J. (2017). Chapter 21 Evolution and Homo sapiens. In 1364598148 998145751 M. Kirkpatrick (Ed.), Evolution (4th ed., pp. 545-570). Sunderland, Massachusetts: Sinauer Associates.