During an action potential, a neuron's membrane potential
A) increases until it reaches threshold, then spikes.
B) decreases as sodium ions flow into the neuron.
C) increases until it reaches threshold, then decreases.
D) may or may not reach threshold.
A
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The Hawaiian Islands are located where the Pacific plate is ________
A) being subducted beneath the North American plate B) being subducted beneath Japan C) being thrust over the North American plate D) being thrust under Japan E) moving over a hot spot or mantle plume
Which of the following is not one of the credit categories for points in LEED certification?
A) sustainable sites B) energy and atmosphere C) outdoor environmental quality D) materials and resources E) water efficiency
Climate change involves
A. changes in precipitation. B. decreasing temperatures. C. increasing temperatures. D. All of the above.
When caught in a thunderstorm in an open field, the best thing to do is to
a. run for cover under the nearest tree. b. lie down flat on the ground. c. crouch down as low as possible while minimizing contact with the ground. d. remove all metallic objects from your pockets. e. climb up onto a hill.