Which of the following statements correctly compares the functions of a plant's roots and stem?

the stem contains a high percentage of cells that provide structural support, unlike the roots.

the stem is the first part of the plant to emerge from a seed, followed by the roots.

the roots contain ground tissue that stores water and glucose, unlike the stem.

the roots contain stomata that allow for gas exchange, while stems do not.

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.