Reptile scales! Or, more specifically, reptiles descended from dinosaurs.
The fact that the two strands of DNA are complementary <span />
The expected reference range when obtaining oxygen
saturation level is 95%-100%.
The four reasons as to why the reference range may be lower
is due to the following;
-
Pulmonary edema
-
Person with history of COPD
-
Asthma and Emphysema
-
Pneumonia
If I remember that abiotic means not living then rocks, soil, air.
