Cardiac muscle tissue, or _____, makes up the major portion of the heart.?
A) ?myocardium
B) ?pericardium
C) ?endocardium
D) ?septum
A
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In comparison to skeletal muscle fibers, the contractile fibers of the heart are depolarized for _____ period of time
a) a shorter b) a longer c) the same
The primary mechanism of water reabsorption in the kidney is
A. primary active transport by means of a protein pump. B. osmosis through aquaporins. C. secondary active transport by means of a sodium-water symporter. D. bulk transport by means of endocytosis.
The patient is 45 years old and is obese. He states he has been on the Atkins diet and has lost 20 pounds. What are the dangers inherent in following fad diets for quick weight loss?
What will be an ideal response?
A flattened lens
A. is necessary for distant vision. B. is necessary for near vision. C. is necessary for both near and far vision. D. reflects light rays. E. only functions with color vision.