With ADH added but in the absence of aldosterone, _______.
A) urine volume decreased
B) the potassium concentration increased
C) the potassium concentration increased and urine volume decreased
D) the potassium concentration decreased and urine volume decreased
E) the potassium concentration decreased
Ans: C) the potassium concentration increased and urine volume decreased
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Lipid-soluble hormones, such as progesterone, exert their effects by forming hormone-receptor complexes that
A. activate a G protein and second-messenger cascade. B. activate adenylate cyclase. C. open ion channels in the cell membrane. D. bind to DNA and initiate transcription.
Disorders involving the vagus nerve might cause
A) food to remain in your stomach longer. B) a drop in blood pressure. C) constriction of the pupils. D) more saliva production. E) increased sweating.
If multicellular organisms have distinct cell types, this means that
A) The different cell types express different genes. B) Each cell can be different. C) Some of the organism's cells will grow larger over time. D) Some cells will have cell walls and others won't.
A dog with cataracts may undergo a/an ________________ to remove the cloudy lens
Fill in the blank(s) with correct word