An action potential does not re-stimulate the adjacent membrane that was previously depolarized because
a. stimulation is inhibited by the myelin sheath. b. it is impossible for an action potential to be propagated along an axon toward the nerve cell body. c. the resting membrane potential of the axon is too positive. d. the resting membrane potential of the axon is too negative. e. that area of the membrane is in the absolutely refractory period.

Which type of neuroglia is found outside of the brain?

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.

Amylase becomes denatured at a temperature of 80°c. during an experiment to study the effect of varyingtemperature on enzyme activity, amylase’s reactivity with starch was measured at body temperature (37°c), andthen again at an increased temperature of 42°c. how would this increase in temperature affect the experiment