Which of the following did not occur during Precambrian time?
A) photosynthesis evolved
B) eukaryotes arose
C) O2 accumulated in the Earth's atmosphere
D) life originated
E) ancestors of all modern animals appeared
Correct Answer:
Verified
Q11: The major Canadian geological deposit that contains
Q12: Ediacaran organisms
A) lived during the Precambrian period.
B)
Q13: During the _ period,jawless fishes were the
Q14: Carl Woese named an ancient aggregate of
Q15: Which of the following was (were)found in
Q17: It is thought that eukaryotes probably originated
Q18: It is thought that the first cells
Q19: Photosynthesis probably originated during the _ eon,and
Q20: Which scientist is given credit for proposing
Q21: The "Age of Fishes" was the _
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