What is the role of phloem in a vascular plant ?

The role of phloem in a vascular plant is to conduct the prepared food and water from the leaves to the other parts of the plant.

Explanation:

The xylem and phloem are conducting vessels that form a major function in the plant. The xylem conducts the water and mineral salts form the ground to the leaves in order to facilitate it with raw materials for starch production through photosynthesis. Whereas the phloem carries the starch from leaves and delivers it to different parts of the plant.

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.  

the answer is c.

by: nicholas dooley