In vertebrates other than fish,the cardiac pacemaker cells are located in an area of the right atrium called the __________.
Correct Answer:
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Q57: The direct connection between two arteries in
Q58: During aerobic exercise in vertebrates
A)sympathetic stimulation of
Q59: What is hydrostatic pressure?
A)pressure exerted by a
Q60: Blood volume is maintained by the
A)kidney.
B)liver.
C)gallbladder.
D)spleen.
Q61: In mammals,the _ is the main blood
Q63: In mammals,the _ is the main blood
Q64: In tetrapods,the _ side of the heart
Q65: An osmotic pressure that is due to
Q66: Beginning with all chambers of the heart
Q67: Doctors use electrocardiograms to diagnose heart conditions.What
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