Micro Organisms
Evolutionary relationships between groups of organisms are determined using which of the following type of information?

Comparisons of biochemical pathways
All of these
Comparisons of nucleotide sequences
Comparisons of structural features

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Micro Organisms
The unifying feature of the archaea that distinguishes them from the bacteria is

absence of a nuclear membrane temperature
habitats which are extreme environments with regard to acidity
cytoplasmic ribosomes that are 70S
presence of a cell wall containing a characteristic outer membrane

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