★ Human Body Quiz
Your heart, blood vessels, red blood cells and white blood cells make up your….
A. Nervous system
B. Respiratory system
C. Circulatory system
D. Immune system
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What organ system in the human body is responsible for the intake of oxygen and the release of carbon dioxide?
A. Respiratory System
B. Circulatory System
C. Reproductive System
D. Integumentary System
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