Which of the following statements about the relationship between Australopithecus sediba and the human line (Homo) is accurate?
A. Au. sediba is the earliest known fossil member of the genus Homo.
B. Au. sediba dates to well after the human line diverged from the australopith line.
C. Au. sediba is the direct evolutionary link to between modern humans and australopiths.
D. Au. sediba did not have many human-like features but walked bipedally.
E. Au. sediba allowed scientists to confirm that australopiths had a different anatomical makeup than humans.
Answer: B
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a. free radical hypothesis b. pleiotropic gene theory c. disposable soma theory d. thrifty genotype hypothesis
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