Many scientists use a specific type of mouse cell to coat the surface of petri dishes with extracellular matrix proteins. This coating forms a layer on which other kinds of cells, often of different species, can adhere and grow. The mouse cells used to coat petri dishes are likely:

Murine fibroblasts

Explanation:

Fibroblasts are the most common cellular type in the connective tissue of mammals and immortal murine fibroblasts are often used in molecular biology to study different characteristics such as, for example, to understand the tissue repair processes

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

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.