Variation among pre-cells was due to ________.
A) genetic drift
B) natural selection
C) the bottleneck effect
D) mutation
Correct Answer:
Verified
Q11: From what can pre-cells spontaneously form?
A)ribozymes
B)RNA
C)fatty acids
D)DNA
Q12: What was the third stage of the
Q13: The absence of _ in the primitive
Q14: Based on fossil evidence, eukaryotes evolved about
Q15: Land was first colonized about _ years
Q17: Which statement is FALSE?
A)The great diversification of
Q18: Large, diverse, multicellular organisms first appeared in
Q19: Spherical bacteria that occur in clusters are
Q20: Which prokaryotic group is most closely related
Q21: What are the two classes of poisons
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