Purpose
In this assignment, you will analyze an example of specialization by researching the finches of the
Galapagos Islands. Then you will answer questions to construct explanations and draw conclusions
based on the information you gather.
Background Information
Biogeographical isolation may occur when populations are geographically separated, anatomically
incompatible, behaviorally different, or temporarily isolated. Any of these mechanisms, or a combination
of them, may lead to speciation if they result in reproductive isolation.
A classic example of speciation as a result of geographic isolation is the finches of the Galapagos
Islands. Charles Darwin hypothesized, theorized, and drew conclusions about evolution based on his
observations of these finches.

cats appear to have glowing cat eyes because the back of their eyeballs includes a special reflective surface called the tapetum lucidum. this lets them see better during the night, giving them a much better vision.

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.