The structural and functional unit of the kidney is the:
A) nephron.
B) medulla.
C) renal cortex.
D) podocyte.
Answer: A) nephron.
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A. amino and R groups. B. monocarbonate and bicarbonate groups. C. amino and carboxyl groups. D. monohydrogen phosphate and dihydrogen phosphate groups.
Sympathetic stimulation ____ heart rate and ____ the motility in the digestive tract
a. does not affect; decreases b. decreases; decreases c. decreases; increases d. increases; decreases e. increases; increases
Glutamate and nitric oxide are involved in the interaction between presynaptic and postsynaptic neurons during long-term potentiation
Indicate whether the statement is true or false
Cells are bathed by fluid that is similar to plasma but is outside the blood vessels. This fluid is:
A) blood B) lymph C) intersitial fluid (extracellular fluid or ECF) D) none of these