Carotene, a pigment that contributes to skin color, is acquired in the body by eating various yellow-orange vegetables.
Answer the following statement true (T) or false (F)
True
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The glossopharyngeal and vagus nerves carry signals from the peripheral chemoreceptors to which structure(s)?
A. The central chemoreceptors B. The aortic and carotid bodies C. The aortic and carotid sinuses D. The pneumotaxic center of the pons E. The medulla oblongata
The most important factor affecting the pH of body fluids is the concentration of
A) lactic acid. B) ketone bodies. C) organic acids. D) carbon dioxide. E) hydrochloric acid.
Urine flows through the ureters to the bladder as the result of ________.
A. gravity B. peristaltic contractions C. a concentration gradient D. osmotic gradient E. a pressure gradient
The falx cerebri and tentorium cerebelli are formed by this connective tissue membrane
A) arachnoid B) dura mater C) pia mater