An action potential in a neuron begins when
a. a threshold potential is reached.
b. the resting potential is established.
c. gated sodium channels close.
d. when gated potassium channels close.
e. more than one of these occur
A
You might also like to view...
Chromosomes of a pair of homologous chromosomes may differ from other chromosomes in terms of
a. size. b. shape. c. alleles they carry. d. position of the centromere. e. all of these.
When wind speeds up as it blows over the top of a hill, atmospheric pressure there
What will be an ideal response?
Information literacy involves the ability to ________
A) recognize what you need to know B) locate relevant information C) evaluate and apply information to a problem D) All of the above are correct.
Figure 4.23A
The structure labeled A in the accompanying figure ____.
A. prevent movement of materials between cells B. are found in tissues subjected to stretching C. allow the free passage of materials between cells D. are found mostly in heart muscle E. are found in most tissues except in the stomach