Eons: - Hadean - Archean - Proterozoic - Ediacaran period
Millions of years ago: - 4,600 - 4,000 - 3,200 - 2,500 - 1,600 - 1,000 - 541 - 300 - 2.6
Which two statements are supported by the information in the geologic time scale?
A. The first prokaryotes developed during the Ediacaran period. B. Most of what we know about the Hadean eon comes from studying stromatolites. C. The first animals appeared during the Proterozoic eon.
The Hadean eon knowledge comes from studying stromatolites, and the first animals appeared during the Proterozoic eon.
Explanation:
The two statements are supported by the information in the geologic time scale:
Most of what we know about the Hadean eon comes from studying stromatolites.Stromatolites are fossilized structures created by ancient bacteria, providing insights into early Earth conditions.
The first animals appeared during the Proterozoic eon.The Proterozoic eon marked the emergence of more complex life forms as described in the geological record.
