Author Question: At a PO2 of 70 mm Hg and normal temperature and pH, hemoglobin is ________ percent saturated with ... (Read 83 times)

scienceeasy · **on:** Feb 28, 2019

At a PO2 of 70 mm Hg and normal temperature and pH, hemoglobin is ________ percent saturated with oxygen.
A) 10
B) 25
C) 50
D) 75
E) more than 90

Question 2

An area of the retina that contains only cones and is the site of sharpest vision is the
A) outer segment.
B) inner segment.
C) fovea.
D) optic disc.
E) tapetum lucidum.