The ___________ are the main organs of the respiratory system.
A. veins
B. lungs
C. arteries
D. kidneys
Select your answer:
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Bonding and the Periodic Table › ViewWhat 5 elements make up your DNA?
A. Hydrogen, Nitrogen, Bromine, Phosphorus and Carbon
B. Nitrogen, Bromine, Phosphorus, Carbon and Oxygen
C. Oxygen, Nitrogen, Carbon, Phosphorus and Hydrogen
D. Hydrogen, Nitrogen, Phosphorus, Carbon and Osmium
Cell & Bond › View
During exercise, total peripheral resistance (TPR) decreases because of the effect of
A. the sympathetic nervous system on splanchnic arterioles
B. the parasympathetic nervous system on skeletal muscle arterioles
C. local metabolites on skeletal muscle arterioles
D. local metabolites on cerebral arterioles