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Multicellular Organisms › ViewWhich of the following is NOT a characteristic of unicellular organisms?
A. They are simple.
B. They survive on their own.
C. They are complex organisms.
D. They compete against each other.
Cardiology Services Med Terms › View
The root word arteri/o refers to which structure of the heart?
A. aorta
B. atrium
C. arterioles