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 sexual dimorphism was finally absent as a trend in human evolution by 2 m.y.a.
B. They prove that H. erectus and H. habilis coexisted in the same ecological niche and eventually interbred to result in a single species.
C. 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.
D. They confirm that H. habilis evolved from H. erectus.
E. They prove that functional differentiation in toolmaking preceded the advent of Homo.
Answer: C
You might also like to view...
A scientist working mostly with fossils is likely to use which species concept?
a. biological b. evolutionary c. ecological d. recognition
Band societies are usually _____
a. settled populations b. tightly organized under hereditary leaders c. found to have considerable political integration d. highly egalitarian e. food producers
What do castes in India provide an example of?
a. Endogamous groups b. Exogamous groups c. Hypogamous groups d. Agamous groups
The Wallace Line is used to designate the:
A. wind-blown silt deposited in deep layers in certain parts of the Northern Hemisphere. B. repeated sets of tally marks, usually in groups of 8 to 10 and made with different stone tools, on engraved bone pieces. C. style and outline of the Venus figurines from the Upper Paleolithic. D. divide between the two distinct groups of animal species.