I think the answer should be B as well hope it helps
This sounds a lot like its hinting at the bodies proactiveness in preparing for evolution of any sort.
The hemoglobin that is about 65% saturated with o2 in a healthy resting person Systemic veins & pulmonary arteries.
<h3>Define Hemoglobin?</h3>
Hemoglobin is a protein in red blood cells that takes oxygen to body's organs and tissues and elates carbon dioxide from organs and tissues back to your lungs.
Thus, Systemic veins & pulmonary arteries are correct.
To learn more about hemoglobin click here:
brainly.com/question/15011428
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Answer:
B axon
Explanation:
The axon carries information away from the cell body.