When antidiuretic hormone (ADH) levels are low ________
A) nearly all of the filtered water is reabsorbed
B) a small volume of concentrated urine is excreted
C) most of the water reaching the collecting ducts is not reabsorbed
D) aquaporins are inserted into the principal cell apical membranes
Ans: C) most of the water reaching the collecting ducts is not reabsorbed
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A telomere is a type of hormone that controls the cell cycle.
Answer the following statement true (T) or false (F)
When the flexor muscles of one arm contract in a withdrawal reflex, the extensor muscles of the other arm contract. This phenomenon is called
A. crossed flexor reflex. B. crossed extensor reflex. C. ipsilateral reflex. D. flexor extensor reflex.
Which of the primary tissue types is most widely distributed throughout the body?
A. Connective B. Muscle C. Nervous D. Epithelium
Which of the following would be most easily broken?
A. An ionic bond B. A hydrogen bond C. A nonpolar covalent bond D. A polar covalent bond