Kidney tubule cells are permeable to ammonium ions, but not to ammonia.
Answer the following statement true (T) or false (F)
False
The tubule cells allow ammonia to pass out of the blood and into the tubule but do not let ammonium ions pass back to the blood.
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The sequence of symptoms of heatstroke is
A. intense itching, profuse sweating, kidney failure, racing pulse, headache. B. neurological symptoms, dizziness, skin reddening, and then headache and racing heart. C. headache, dizziness, exhaustion, then sweating, which stops as the skin becomes red, hot, and dry. D. fever, itching, redness, headache, numb extremities, vomiting.
Which of the following is a mechanism of heat transfer that involves direct contact?
a) Conduction b) Convection c) Radiation d) Evaporation e) Metabolic rate
You walk into a restaurant and amidst the sights, sounds, and smells of food preparation, you notice that you have begun to salivate. This is evidence that a particular neuronal circuit has been activated. Which one?
A. Converging B. Diverging C. Reverberating D. Parallel-after-discharge E. None of the choices is correct.
Just before ovulation, estrogen levels drop.
Answer the following statement true (T) or false (F)