Choose the answer that best describes HCO3-.
A) a bicarbonate ion
B) common in the liver
C) a weak acid
D) a proton donor
A) a bicarbonate ion
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A cell is the basic unit of structure and function of an organism.
Answer the following statement true (T) or false (F)
In the following transverse CT scan through the neck, which is at a more inferior level than the scan shown in the previous question, the arrow points to the:
A) lobe of thyroid gland. B) sternocleidomastoid. C) sternohyoid. D) longus colli. E) internal jugular vein.
Which of the following factors does not influence heart rate?
A) skin color B) age C) gender D) body temperature
On a hot August day at the beach, the lifeguard jumped up and ran into the water, throwing a life-buoy to a troubled swimmer calling for help, and pulling her to safety. He was happy to help the swimmer, and once back on the beach, he realized that being
in the water cooled him off a great deal. What form of heat transfer contributed to his feeling cooler? A) convection B) radiation C) conduction D) evaporation