Circulatory System MCQs Quiz Online PDF Download
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MCQs on Circulatory System Quiz PDF Download
MCQ: In vertebrates blood flows in
- close circulatory system
- open circulatory system
MCQ: Walls of capillaries are made up of cells named as
MCQ: Capillaries help to exchange substances between blood and
- bone marrow
MCQ: Arteries have thick elastic walls so that they can maintain the
- blood pressure
- heart attack
- blood deficiency
MCQ: Aorta divides to form