The discovery of ancient stromatolites helped determine:
a. when prokaryotes originated
b. when eukaryotes originated
c. how organic molecules could form abiotically
d. the endosymbiont theory
Answer: A
The discovery of ancient stromatolites helped determine:
a. when prokaryotes originated
b. when eukaryotes originated
c. how organic molecules could form abiotically
d. the endosymbiont theory
Answer: A