Which is a characteristic of open circulatory systems but NOT closed circulatory systems?
A) a heart
B) a vascular system
C) blood
D) open-ended vessels
Correct Answer:
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Q7: Blood pressure that is consistently _ or
Q8: Which of these carry(ies)oxygen-poor blood?
A)pulmonary arteries
B)pulmonary veins
C)aorta
D)left
Q9: Why is blood pressure higher during systole
Q10: Blood pressure is lowest in _.
A)veins
B)capillaries
C)arterioles
D)venules
Q11: One type of electrical defect in the
Q13: Veins carry _.
A)blood away from the heart
B)oxygen-rich
Q14: What is one way in which the
Q15: The basic rhythm of the heartbeat is
Q16: If your blood pressure were 120/70, it
Q17: In humans, oxygen is delivered from the
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