The ancestor of the three domains of life was ____.
A) a prokaryotic bacterium
B) an archaean endosymbiont
C) a proto-eukaryote
D) the last universal common ancestor (LUCA)
E) none of these are correct
Correct Answer:
Verified
Q1: The _ ion is required for ribozymes
Q2: The famous Miller-Urey experiments provided crucial support
Q3: Ribozymes may have originally developed by _.
A)
Q4: Early biological activity may be found in
Q5: The first information storage molecule was probably
Q7: Where did Earth's atmosphere originate?
A) Earth's gravity
Q8: Molecules that are able to store and
Q9: Modern cells are thought to have arisen
Q10: Why is the distance of Earth from
Q11: Organic macromolecules may have formed by _.
A)
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