Deshawn is studying homeostasis and circulation. to organize his findings, he constructs two models of the human heart, veins, and arteries:
one to represent a non-smoker, and one that includes attributes typically found in a smoker. by comparing the two models, which relationship of
cause and effect can deshawn best explain?
a. contractions of the heart move blood through the circulatory system.
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b. smoking causes changes to homeostasis throughout the body.
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c. smoking damages the function of the circulatory system.
d. blood flows in one direction only through the circulatory system.