After a stimulus results in initial depolarization of a region of cell membrane of a neuron, a threshold voltage is reached. once this happens, which of the following takes place? a. a large number of voltage-gated sodium channels quickly open, causing a rapid change in membrane potential. b. voltage-gated sodium channels quickly close, voltage-gated potassium channels open, and recovery begins. c. a large number of voltage-gated potassium channels quickly open, causing a rapid change in membrane potential. d. voltage-gated sodium and potassium channels quickly close, and recovery begins.

the aswer is letter c

i'm gonna put a couple so you can chose from

explanation:

if you know the fur color of the offspring mice, you can use the ratios to identify the genotypes of the parents.

if either parent mouse passes a dominant allele, the offspring will have black fur.

if the parental mice has two different fur color (i.e white and black) , the color of the offspring's fur would be either black, white, or the combination of both (grey)

hope this : )

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.