Thfirst organisms
A) absorbed their food supplies from the organic molecules that surrounded them.
B) were eukaryotes.
C) utilized fermentation for energy production.
D) utilized ATP.
E) did all of these except they were NOT eukaryotes.
Correct Answer:
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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
Q25: Experiments likthosperformeby Stanley Miller in th1850s demonstrated
A)that
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.
Q31: A hypothesis of thorigin of molecules of
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