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) isotopes other than carbon that also show ratios consistent with biological activity
B) microfossils within the rocks
C) DNA within the rocks
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
Q13: The most conclusive evidence for microfossils comes
Q14: Current geological evidence suggests that life
A) must
Q16: Carbon-13, with an atomic number of 6
Q19: 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
Q39: Life probably did not originate on the
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