Based on fossil evidence,eukaryotes evolved about _____ years ago.
A) 500,000
B) 1.5 billion
C) 2.1 billion
D) 3.5 billion
Correct Answer:
Verified
Q4: The first organisms to colonize land were
A)
Q5: Why is RNA thought to have been
Q6: The prokaryotic group that tends to inhabit
Q9: What was the first stage of the
Q10: The idea that life regularly arises from
Q15: Large amounts of oxygen gas appeared in
Q16: Which of the following prokaryotes aid digestion
Q16: Variation among pre-cells was due to _.
A)genetic
Q17: Which prokaryotic group is most closely related
Q20: RNAs that can act as enzymes are
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