Differences in tubule ________ result in dramatic differences in which molecules are reabsorbed or secreted in each part of the tubule.
A. concentration
B. pressure
C. circulation
D. permeability
Answer: D
Anatomy & Physiology
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The integrating center for the negative feedback loop that regulates body temperature is the
A) hypothalamus. B) skin. C) temperature sensor. D) positive feedback center. E) thermostat.
Anatomy & Physiology
The X and Y chromosomes are considered homologous autosomes
Indicate whether this statement is true or false.
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The sympathetic nervous system:
a. is called the thoracolumbar system b. releases norepinephrine from its preganglionic axon c. is called the craniosacral system d. both A and B above
Anatomy & Physiology
Most of the O2 in the blood is transported as ________.
A. carbonic anhydrase B. dissolved O2 in the plasma C. bicarbonate ions D. oxyhemoglobin
Anatomy & Physiology