The island of Surtsey was formed by volcanic eruption and first appeared in 1963. Figure 1 contains descriptions of changes in the population and diversity of species that occurred on this island over time. Figure 1

Descriptions of Changes
I Sea lyme grass, sea rockets, oyster plants, and other shrubs appear.
II The lava and sands have few nutrients and are barren.
III Dwarf willow trees colonize the island.
IV Mosses, lichens, and plants that are adapted to dispersal by the wind and growth in sand begin to appear.

Using Figure 1, which of the sequences below lists the descriptions of changes in the correct order of ecological succession?

haploid cells;

the answer is false?

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.