What is the main function of gas exchange
A. To remove carbon dioxide and supply oxygen to the body
B. To remove oxygen from the body
C. To supply carbon dioxide and remove oxygen from the body
D. To supply water to the body cells
Select your answer:
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Pathology › ViewWhich of the following is true about oncogenes:
A. Present in normal cell
B. They are of viral origin
C. They are transduced from virus infected cells
D. P53 is an example
E. Viral oncogenes are identical to human oncogenes
The Vascular System and Blood Flow › View
What is the main role of the nervous system in the return of blood to the heart?
A. Assisting in the distribution of blood to different organs
B. Pushing or massaging blood back to the heart with each muscle contraction
C. Causing veins to slightly constrict to return more blood to the heart
D. Creating a difference in pressure between the veins in the chest and abdominal cavities