Site MapHelpFeedbackMCQ Fossil Image Bank Questions
MCQ Fossil Image Bank Questions

The Primates

Australopithecus afarensis (Lucy)

SC 036 Lucy (169.0K)

Homo ergaster

SC 012 Ergaster (184.0K)

1
With the appearance of Homo erectus in hominin evolution there was a substantial reduction in sexual dimorphism compared to the earlier Australopithecine species. What could have been the significance of this reduction?
A)Signals entering into new environments
B)Females were becoming the dominant sex
C)Indicates a multimale/multifemale social structure
D)Increased group competition
E)Reduced level of group competition





To learn more about the book this website supports, please visit its Information Center.
(c)2008 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Notice.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.


The Human SpeciesOnline Learning Center

Home > Chapter 5 > MCQ Fossil Image Bank Questions