Topics: Transport system in Living Things (Human) Quiz
What is the function of a white blood cell?
A. It helps repair wounds.
B. It helps in the clotting of blood.
C. It protects the body against diseases.
D. It carries oxygen to all parts of the body.
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What does the human circulatory system consist of?
A. lungs and heart
B. heart, blood vessels & blood
C. blood and veins
D. bones, muscles and hair