The carotid bodies contain _________ chemoreceptors that respond to changes in ________________
A. peripheral; blood concentrations of H+ and O2
B. central; blood concentrations of H+, but not CO2 and O2
C. peripheral; cerebrospinal fluid concentrations of H+
D. central; cerebrospinal concentrations of CO2
E. peripheral; concentrations of carbon, dust, and pollution in the lungs
A
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The Pacific yew tree produces the microtubule disrupter known as ___________
Fill in the blank with the correct word.
Aldosterone regulates balance of
A) Calcium and chloride. B) Magnesium and sodium. C) Sodium and potassium. D) Phosphates and calcium.
The larynx lining transitions at the vocal cords from stratified squamous nonkeratinized epithelium to:
A) pseudostratified ciliated columnar epithelium. B) transitional epithelium. C) simple squamous epithelium. D) simple columnar epithelium.
Where is the motor response initiated?
A) cranial nerves B) lower motor neurons of the peripheral nervous system (PNS) C) motor areas of the brain D) spinal nerves