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D the vessel with valves to prevent backflow

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D. The vessel with valves to prevent backflow. ELECTRICAL SIGNALING If you experimentally increase the concentration of Na+ outside a cell while maintaining other ion concentrations as they were, what would happen to the cell's membrane potential? A) The membrane potential would decrease. B) The membrane potential would increase. C) The membrane potential would be unaffected. D) The answer depends on the thermodynamic potential. Which letter in the figure below corresponds to a large efflux of K+ ions from the a neuron during an action potential? A) A B) B C) C D) D E) E
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2 The autonomic nervous system does not control ________. A) Airway diameter. B) Contraction of skeletal muscle. C) Heart rate. D) Pupil dilation and constriction. E) Stomach activity. SENSORY MOVEMENT Deafness caused by loud sounds would most likely result from damage to which type receptor cells? A. chemoreceptors B. nociceptors C. electroreceptors D. mechanoreceptors E. thermoreceptors How could you genetically modify an animal so that it would distinguish more shades of green? A. Introduce genes to produce green fluid in the eyeball, because green fluids will not absorb green light.
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