Evidence supporting the lack of oxygen on early Earth includes _____.
A) the presence of early photosynthesizers
B) the immediate breakdown of organic molecules
C) the lack of iron oxidation on ancient rocks
D) the presence of iron oxidation on ancient rocks
E) the accumulation of ozone
Correct Answer:
Verified
Q10: The appearance of _ on Earth due
Q11: Experiments like those performed by Stanley Miller
Q12: _ are dome-shaped structures composed of layers
Q13: DNA is more stable than RNA for
Q14: What are the four main organic subunits
Q16: Place the following hypothesized events of the
Q17: _ may have been the ancestors of
Q18: G. lamblia infection in the gut _;
Q19: According to scientific evidence, the first organisms
Q20: A _ is a disease-causing organism.
A) microbiota
B)
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