Topics: Human Organs Quiz
Main function is to take in oxygen and get rid of carbon dioxide.
A. Integumentary System
B. Respiratory System
C. Digestive System
D. Circulatory System
E. Endocrine System
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What are some major parts of the digestive system?
A. kidneys, liver, bladder, and skin
B. brain, spinal cord, and nerves
C. mouth, stomach, large intestine, small intestine
D. heart, arteries, and veins