Multiple Choice
Stromatolites are
A) fossils of the first organisms to introduce oxygen into the atmosphere
B) fossils of the first multicellular organisms
C) layers of sediment that once contained colonies of ancient microbes
D) fossils of the first eukaryotes
Correct Answer:
Verified
Correct Answer:
Verified
Q33: Stromatolites date back to approximately<br>A) 4.6 billion
Q34: The rocks found in Greenland with carbon
Q35: The probability of Earth being hit by
Q36: Why have studies of the geological record
Q37: What do we mean by "The Oxygen
Q39: Most likely, oxygen was first released into
Q40: RNA catalysts in cells are referred to
Q41: How similar are humans and chimpanzees genetically?<br>A)
Q42: The possibility of life being transferred from
Q43: The first self-replicating molecule was probably<br>A) a