Experiments likthosperformeby Stanley Miller in th1850s demonstrated
A) that DNA forms readily and produces itself.
B) that many of the organic compounds required for life can form under abiotic conditions.
C) that complete, functioning prokaryotic cells are formed after approximately three months.
D) that a lipid-protein film will eventually be formed by thermal convection.
E) by all of these.
Correct Answer:
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Q20: Microorganisms may possibly adapt to which of
Q21: Thfirst organisms
A)had to be autotrophic.
B)were parasitic.
C)obtained energy
Q22: Photosynthetic organisms using thoxygen-releasing pathway appeareon earth
Q23: Two researchers suggestein th1960s that _ may
Q24: Clay compounds werthought to boriginal sites for
Q26: Thfirst organisms
A)absorbed their food supplies from the
Q27: Increasin thpopulation of photosynthetic bacteria using thoxygen-releasing
Q28: Which of thfollowing scientists suggestethat RNA may
Q29: Which of thfollowing sites may havbeen thsitof
Q30: Early photosynthetic organisms dinot produce
A)sugars.
B)oxygen.
C)lipids.
D)proteins.
E)nucleotides.
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