An action potential is brought about by

a. a sudden membrane impermeability.
b. the movement of negatively charged proteins
through the neuronal membrane.
c. the movement of lipoproteins to the outer side of
the membrane.
d. a local change in membrane permeability caused
by a threshold level stimulus.
e. all of these.


Answer: d

Biology & Microbiology

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Which of the following is an example of asexual reproduction in eukaryotes?

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