<span>Factors such as not having the sufficient money to
afford the tuition and not having the necessary connections to get into the
institution. The former is explainable because tertiary education is really
costly and the latter is not knowing who to ask or get in touch when applying
for the institution.</span>
Answer:
Explanation:
Action potential
It is the potential or power or electrical energy required to generate impulses and provides communication between the neurons is called action potential. Normally cell membrane consists of potential is called resting membrane potential() -70mV. The action potential is due to exchange of different ions across the membrane.
Phases of the action potential in a neuron are
i. Depolarization- it is caused by the influx of sodium and calcium ions through the opening of voltage-gated sodium and calcium channels. sodium ion influx is rapid than the calcium ions membrane potential -70mV to +30mV.
ii. Repolarization - It causes the efflux of potassium ions into the cell through the opening of potassium channels. the membrane returning to resting membrane potential.
iii. After- Hyper polarization - in this stage the potassium channels remain open and causes re polarization and comes to normal membrane potential.
The generation of impulses(depolarization) in neuron mainly depends on influx sodium and calcium ions without these ions, no action potential developed and neuron firing does not occur.
If the drugs inhibit these channels, no depolarization, no action potential, no neuronal firing or communication.
The channels involved in an action potential are voltage-gated sodium channels, potassium channels, and calcium channels.
The action potential is required for transmission of information one are to another area in the body.
The responses to different stimuli is due to action potential.
Please regard that the comparison table is missing, but I'll give you a general idea. First, the comparison must be made according to the following aspects: cost, utility, model, and convenience of the car. In the same way, it is necessary to know if you are buying a used or a new one from the dealer. According to this, the utility of the Volkswagen depends on the type of model, and its final use. If someone were going to buy a family car, the Volkswagen would offer more space, a better design, a good speed and more convenient price than a mini cooper. If instead, the person seeks to buy the car just for him and to travel, maybe the Cooper is more convenient for its speed, but it is usually a more expensive car even without taking into account the model and year of manufacture. So that, the Jetta has the advantage of size, price, utility, and warranty, that although the Cooper also meets the last two, its high price and size would not work for a family car.
<span> Prohibition proved difficult to enforce and failed to have the intended effect of eliminating crime and other social problems–to the contrary, it led to a rise in organized crime, as the bootlegging of alcohol became an ever-more lucrative operation. In 1933, widespread public disillusionment led Congress to ratify the 21st Amendment, which repealed Prohibition.</span>
