What evidence was used to determine that the last universal common ancestor of all life lived about 4.3 million years ago?
A) fossils of prokaryotic cells
B) genome comparisons between all living things
C) life found in meteorites
D) fossil cladistic analysis
E) more than one of these

Question

Quizplus · Accepted Answer

Genome comparisons between all living things were used to determine that the last universal common ancestor of all life lived about 4.3 billion years ago. Fossils of prokaryotic cells and fossil cladistic analysis were not used to determine this, and there is no evidence of life found in meteorites.

What Evidence Was Used to Determine That the Last Universal