Which one of the following is a characteristic of open circulatory systems but NOT closed circulatory systems?
A) a heart
B) a vascular system
C) blood
D) open-ended blood vessels
Correct Answer:
Verified
Q2: Which of these animals has a double
Q6: Trace the path of a red blood
Q7: Blood pressure that is consistently _ or
Q8: If you separated the components of blood
Q9: Why is blood pressure higher during systole
Q10: Blood pressure is lowest in _.
A)veins
B)capillaries
C)arterioles
D)venules
Q14: What is one way in which the
Q17: Which blood vessels have thin,leaky walls?
A)capillaries
B)venules
C)arteries
D)none of
Q18: Animals such as hydras and jellies can
Q19: In animals with a closed circulatory system,
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