Select your answer:
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Energy, Hydrology, Microbiology › ViewWhat defines a prokaryotic cell?
A. multicellular, nucleus
B. multicellular, no nucleus
C. unicellular, nucleus
D. unicellular, no nucleus
Cardiovascular System › View
The Semi Lunar valves opens when
A. the pressure in the ventricle becomes lower than the arteries
B. the pressure in the ventricle becomes higher than the arteries
C. during atrial systole
D. during ventricular diastole