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Unformatted text preview: Cellular respiration reduces the O 2 to water (in the mitochondria of the rats left toe) and during CO 2 becomes produced. Trace the movement of a CO 2 molecule from the left toe to the lungs of a rat. (Note that this movement occurs in the circulatory system). Be sure to include all four heart chambers, all the major blood vessels that enter and leave the heart, and all four heart valvesinclude correct names. 6. How does the heart obtain its nutrients and oxygen? (hint: capillary beds) 7. Outline the flow of urine from the kidney to the urethra in both a male and a female rat. 8. Name at least two glands found in the neck region of a rat....
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