The answer is C. Hopes this helps you out. :)
At the onset of a muscle contraction, the presence of calcium triggers the opening of the Na-K channels in the membrane. Potassium is a calcium inhibitor, so as the potassium flows out of the cell, it eventually reduces the presence of calcium. This causes the closure of the Na-K channel (negative feedback mechanism). In a hypokalemic state, the lack of sufficient K doesn't inhibit the calcium channel, and in turn doesn't properly terminate the muscle contraction at the cellular level.
Answer:
Being employed provides many benefits other than the more obvious financial rewards. Having a job can give an individual a sense of purpose, a routine and a reason to get out of bed in the morning.
The River Thames is the river that runs through Southern England which includes London, and eventually empties into the North Sea. It is actually the longest river all over England and is the second longest in all of United Kingdom. The largest is River Severn. River Thames also flows alongside towns and cities like Oxford, Reading, Henley-on Thames and Windsor.
