Topics: Skel, Musc, Nerv, Circ, Resp Quiz
What is the primary role of the cardiovascular system in maintaining the body?
A. It signals nervous responses and hormones.
B. It controls growth and sexual reproduction.
C. It provides cells with nutrients and oxygen while it removes waste.
D. It breaks down food and carbon dioxide, while it excretes mucus
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Red blood cells are produced in the body and travel through arteries and veins. The circulatory system is able to maintain a relatively constant amount of red blood cells because blood cells are regularly produced by
A. the lymph of the circulatory system
B. the neurons of the nervous system
C. the glands of the endocrine system
D. the bones of the skeletal system