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lina2011 [118]
3 years ago
14

Which organ is a part of circulatory system? a. brain b. heart c. lungs d. stomach

Chemistry
2 answers:
Mumz [18]3 years ago
7 0
B is the answer   4 that        :)                           
statuscvo [17]3 years ago
3 0
The brain is part of the neurological/nervous system, the lungs are part of the pulmonary system, and the stomach is the key component of the digestive system. This leaves the answe "B", the heart, as the answer because it is the pump in every mammalian body that drives blood flow leaving the heart through arteries and returning deoxygenated through the veins.
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