The pathway of blood from the heart to the lungs and back to the heart is the ________ circulation.
A. pulmonary
B. systemic
C. cardiac
D. pleural
Answer: A
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What six basic steps are involved in the process of hearing?
Using the figure below, identify the labeled items.
1) Label A: ______________________________
2) Label B: ______________________________
3) Label C: ______________________________
4) Label D: ______________________________
5) Label E: ______________________________
6) Label F: ______________________________
7) Label G: ______________________________
8) Label H: ______________________________
Which portion of the brain adjusts skeletal muscle activity to maintain equilibrium and posture?
A. Cerebellum B. Medulla oblongata C. Pons D. Cerebrum E. Epithalamus
The hormone called ________ plays an important role in synchronizing physiological function with the cycle of daylight and darkness
A) melatonin B) inhibin C) melanin D) calcitonin E) hepcidin