Many Texas caves provide a habitat for animals that live in total darkness. The caves are damp and cool, and most of the caves are rich in the mineral calcite. The diagram below
shows the relationships of some organisms involved in a cave ecosystem.
Inside the Cave
Outside the Cave
Cave spiders
Owls
Beetles
Millipedes
Springtails
Snakes
Bats
Moths
Bat droppings
Based on the diagram, which of the following statements is valid?
F Owls are predators of bats, and bats are predators of moths.
G Beetles compete with bats and cave spiders.
HSnakes prey on bats and owls.
None of the above
3

what is the statement?

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.