During an action potential, a neuron's membrane potential
A. decreases as sodium ions flow into the neuron.
B. increases until it reaches threshold, then decreases.
C. may or may not reach threshold.
D. increases until it reaches threshold, then spikes.
Answer: D
You might also like to view...
The five rules for developing a theological principle
What does a food web illustrate?
a. trophic relationships b. primary production c. a net filled with food d. heterotroph consumption e. autotroph consumption
Which of the following health problems associated with UV exposure is also associated with thinning of Earth's ozone layer?
A) headaches B) heart disease C) skin irritations D) gastrointestinal disease E) skin cancer
One of the reasons why tornado frequency is lower in Europe than in North America is
A) the Gulf Stream encourages the clash or warm and cold air. B) east west trending mountains inhibit the clash of warm and cold air. C) lower population densities and storm reporting capabilities. D) higher than normal temperatures due to the presence of the Gulf Stream.