Select your answer:

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Lungs Balanced Diet Anatomy & Physiology: Respiratory Types of Medical Reports What is Psychology? Characteristics of Life & Viruses Vision & Hearing Chemistry IV Therapy and Blood Transfusion Liveability Major Organs Body Musculoskeletal Fitness Neuroanatomy & Physiology Cells, Tissues and OrgansOther quiz:
Environment › ViewSkin microflora is an example of which relationship
A. parasitism
B. commensalism
C. syntrophism
D. amensalism
Heart Anatomy › View
The oxygen rich blood flows back to the heart via the __________________________________.
A. pulmonary artery
B. pulmonary vein
C. inferior vena cava
D. superior vena cava