Which is true regarding the general characteristics of normal urine?
A) The bacterial content is very high.
B) Normal pH range is 2 to 4.5.
C) Normal range of volume is 2500 - 3500 mL/day.
D) Normal urine is typically 65% water content.
E) The osmolarity of normal urine ranges from 855 - 1335 mOsm/L.
E) The osmolarity of normal urine ranges from 855 - 1335 mOsm/L.
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The absence of which hormone during development will cause the nervous system to develop abnormally and cause developmental delays?
A) thymosin B) calcitriol C) calcitonin D) androgens E) thyroxine
Compared to skeletal muscle, contraction of smooth muscle cells is
A) a slower response to a stimulus and sustained without fatigue. B) a slower response to a stimulus, sustained without fatigue, and controlled by the somatic nervous system. C) only sustained without fatigue. D) only controlled by the somatic nervous system. E) only a slower response to a stimulus.
Simple compounds are built up and used to manufacture cellular materials in the process of ________.
A. catabolism B. positive feedback C. anabolism D. negative feedback
The normal pH range of urine is ________
A) 7-9 B) 3.5-7 C) 4.5-8 D) 1-4.5