Which observation supports the position of eukaryotes at the convergence of the "ring of life"?

The nuclear genome of eukaryotes comprising the genes from both the Bacteria and Achaeans supports the position of eukaryotes at the convergence of the ring of life.  

The genomes incorporate within them the data of the evolution of life on Earth. It has been shown that the eukaryotic genome originated from an amalgamation of two different prokaryotic genomes, and thus, at the deepest levels associating both the eukaryotes and prokaryotes and therefore, one can say that the tree of life is in a real sense a ring of life.  

One of the partners taking part in the process of fusion branches from deep within an ancient photosynthetic clade and the other is associated with the Archaeal prokaryotes.  

rocks and weathering-matching

hypoxemia refers to a below usual concentration of oxygen in the blood, mainly in the arteries. hypoxemia is an indication of an issue associated with circulation or breathing and may lead to various symptoms like shortness of breath.  

the condition is identified by determining the level of oxygen in the blood sample obtained from an artery. it can also be predicted by determining the oxygen saturation of the blood with the application of a pulse oximeter.  

the normal arterial oxygen is about 75 to 100 mm hg. the values underneath 60 mm hg is generally considered with the requirement for supplemental oxygen. the normal pulse oximeter readings generally range between 95 to 100 percent. the values under 90 percent are regarded as low.  

in the given case, the oxygen saturation is measured at 93 percent, hence, there is no need to administer oxygen, that is, one should withhold oxygen.