Marsupials, such as kangaroos, koalas, and wombats, are mammals that care for their newborn young in a pouch. all marsupials that are found in australia are thought to have evolved from a single species that migrated to the island and then adapted to the various niches. what does this example illustrate?

Adaptive Radiation

Explanation:

Adaptive radiation refers to an evolutionary process in which organisms diversify from one ancestral species, which leads to different other forms and species. This tends to happen when organisms are pressured to adapt to a new environment.

Australian terrestrial mammals such as kangaroos, koalas, and wombats, are examples of this process. According to research, these iconic marsupials went through adaptive radiation in response to the expansion of grassland that occurred in the mid-Pliocene. Another example (the most famous one) is the case of Darwin's finches, which all evolved from a single species but then changed in response to their environment.

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.