To study prehistory historians rely on the work of archaeologists and (anthropologists/Australopithecus)< br /> what is the answer
pick a answer
anthropologists or Australopithecus

answer; all over the above; //everybody

a family can go through many changes which would make it complex. having children can cause a change and increase the complexity. this would change the distribution of authority and management, as the older siblings will at some point be in charge of the younger ones, and discipline must be distributed when they get in trouble.