What have researchers learned by looking at the molars and other cranial features of H. erectus?
A. H. erectus was more dependent on tubers than earlier hominins.
B. H. erectus was more dependent on huntingand the lifestyle it demandedthan earlier hominins.
C. The chewing apparatus of H. erectus was essentially the same as that of H. habilis.
D. The paucity of dental remains of H. erectus has made it difficult for researchers to say anything significant.
E. H. erectus had yet to make the shift to hunting seen later on with Neandertals.
Question 2
What is so significant about the recent fossil finds of an H. erectus and an H. habilis from Ileret, Kenya, east of Lake Turkana?
A. They prove that H. erectus and H. habilis coexisted in the same ecological niche and eventually interbred to result in a single species.
B. They confirm that H. habilis evolved from H. erectus.
C. They prove that sexual dimorphism was finally absent as a trend in human evolution by 2 m.y.a.
D. They negate the conventional view held since 1960 that habilis and erectus evolved one after the other. Instead, they lived side by side in eastern Africa for perhaps half a million years.
E. They prove that functional differentiation in toolmaking preceded the advent of Homo.
Compared with modern humans, Homo erectus has a larger face, lacks a chin and canine fossa, and has
Ngandong calottes from Java are the youngest H. erectus fossils at perhaps 27,000-50,000 years old.
Cranial Nerves
Researchers attach satellite-linked transmitter to a beluga whale
General Features of Connective Tissue
Homo erectus and Stone Tools