The images show two different types of Galapagos tortoises that scientists believe descended from the same species. The first type (left) are found on islands that have high vegetation and few grasses. The second type (right) are found on an island that has large amounts of grasses and low-lying shrubs. What explains the type of turtle found on the islands with high vegetation? A. The environment triggered a gene mutation in neck length in order to help the turtle survive. B. Mutations are random, so it is by chance that turtles with longer necks live on these islands. C. Turtles with genes for long necks had a better chance of surviving to reach reproductive age. D. Turtles with short necks completely lacked adaptations for finding food, so they died off.

it marks things for degradation via the proteasome. it alters there celluar location.

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.  

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.