Biology, 06.05.2020 07:35, katielloyd
Action potentials (nerve impulses) are changes in the membrane potential that, once started, will affect the entire excitable membrane. The first action potential is usually generated at the initial segment of the neuron's axon. This activity will test your understanding of the sequence of events that occur at the membrane of the initial segment of the axon during generation of an action potential.
a..Threshold stimulus
Na+ channels open
b..Na+ influx
Depolarization
c. Na+ channels close
d..K+ efflux
Repolarization
e. Hyperpolarization
K+ channels close
Answers: 1
Biology, 21.06.2019 16:10, eliLoumbardia
Maria wanted to grow a fern in her backyard. acting on a suggestion from a friend, she collected brown dots from the underside of a fern's leaves and then potted them. after a few days, maria saw small fern leaves erupting from the pot. which statement explains this phenomenon? a. the fern transitioned from gametophyte generation to sporophyte generation. b. the fern grew as a result of mitosis. c. the fern transitioned from sporophyte generation to gametophyte generation. d. the fern grew to be genetically identical to its parent plant.
Answers: 1
Biology, 22.06.2019 21:00, Shihhschool20
Which of the claims below does this model support? select all the claims that are supported
Answers: 3
Action potentials (nerve impulses) are changes in the membrane potential that, once started, will af...
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