The circulatory system consists of the:
A) heart and blood vessels.
B) heart, blood vessels, and the cardiovascular system.
C) heart alone.
D) cardiovascular system.
Question 2
The esophagus, stomach, small and large intestines are all parts of:
A) alimentary canal.
B) elementary canal.
C) accessory canal.
D) alimentary tube.
E) accessory tube.