Which prokaryotic organism shows up as the earliest fossils?

Dna is always read in the whereas rna is read in .

Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees

Scientific evidence is most likely to be consistent if it is based on data from