Which of the following statements is true of graded potentials?
A) They travel over long distances.
B) They have different amplitudes.
C) They are typically found in axons.
D) They travel without decrement.
Answer: B
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Two neighboring neurons are at rest. Neuron A has a resting membrane potential of -80mV, Neuron B has a resting membrane potential of -70mV. Which is likely to be TRUE?
A. Neuron A has more Na+ channels open than Neuron B. B. Neuron B has more K+ channels open than Neuron A. C. Neuron A has more K+ channels open than Neuron B. D. Neuron B has more Na+ channels open than Neuron A. E. None of the answer choices are correct.
Cows are required to have a yearly Coggin's test
Indicate whether the statement is true or false
Humans normally have ________ pairs of ribs
A) 2 B) 6 C) 10 D) 12 E) 24
Which layer of the digestive tract is in direct contact with the food consumed?
A. mucosa B. muscularis C. submucosa D. serosa E. peritoneum