Use the following information to answer the question(s) below.

healthy individuals of paramecium bursaria contain photosynthetic algal endosymbionts of the genus chlorella. when within their hosts, the algae are referred to as zoochlorellae. in aquaria with light coming from only one side, p. bursaria gather at the well-lit side, whereas other species of paramecium gather at the opposite side. the zoochlorellae provide their hosts with glucose and oxygen, and p. bursaria provides its zoochlorellae with protection and motility. p. bursaria can lose its zoochlorellae in two ways: (1) if kept in darkness, the algae will die; and (2) if prey items (mostly bacteria) are absent from its habitat, p. bursaria will digest its zoochlorellae.

-the motility that permits p. bursaria to move toward a light source is provided by

-pseudopods

-contractile vacuoles

-many cilia

-a single flagellum featuring the 9 + 2 pattern

prism b but im not for sure

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.