Which of the following accurately reflects the beliefs on Earth's early history?

AScientists believe that DNA may have existed before RNA.
BScientists believe the early atmosphere lacked the oxygen necessary to support modern human life.
CScientists believe that microspheres nearly prevented the development of early life.
DScientists believe oxygen was plentiful in the early atmosphere.

Question

mon2kL6isabaG mon2kL6isabaG

29-12-2015
Biology

Answered

Which of the following accurately reflects the beliefs on Earth's early history?

AScientists believe that DNA may have existed before RNA.
BScientists believe the early atmosphere lacked the oxygen necessary to support modern human life.
CScientists believe that microspheres nearly prevented the development of early life.
DScientists believe oxygen was plentiful in the early atmosphere.

Verified Answer :

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The following statements accurately reflect the beliefs on Earth's early history:
B. Scientists believe the early atmosphere lacked the oxygen necessary to support modern human life.

The following statements are incorrect:
A. Scientists believe that DNA may have existed before RNA - Scientists actually believe the opposite - RNA may have existed before DNA.
C. Scientists believe that microspheres nearly prevented the development of early life.
D. Scientists believe that oxygen was plentiful in the early atmosphere - again, scientists believed the opposite