Recent evidence that supports the controversial claim based on carbon isotope ratios of biological activity in 3.85 billion year old rocks from Greenland includes the discovery of
A) DNA within the rocks
B) microfossils within the rocks
C) similar carbon isotope ratios in other rocks of comparable age
D) oxygen gas trapped within the rocks
Correct Answer:
Verified
Q9: Stromatolites date back to approximately
A) 4.6 billion
Q11: Why have studies of the geological record
Q14: Current geological evidence suggests that life
A) must
Q16: Carbon-13, with an atomic number of 6
Q18: Recent evidence that supports the controversial claim
Q20: Carbon isotope evidence from rocks found in
Q21: According to modern biological evidence, modern DNA-based
Q22: One type of early pre-cell (vesicle) probably
Q24: What was NOT an important source of
Q39: Life probably did not originate on the
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