Answer:
it would be A, Alternative
Explanation:
B I think. Hope it's correct.
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.
1) a habit is something we do out of convince, for example biting your nails when you’re nervous. we do that witchy a second thought. An addiction is something that we do over and over again causing harm to our lives.
2) some people just have more addictive tendencies than others. sometimes it’s the environment people are in as well Those who grow up around peers who use drugs and alcohol are more likely to begin using themselves. it can also depend on how the drug is consumed, Injecting a drug produces a greater dopamine rush, making a user that much more likely to become dependent on it.
3) Most of us have experienced the homeless and addicted. They stand out. They live public and many people make the mistake of assuming people living with addiction are incapable of holding jobs or having functional families. In truth, most people with addiction are hard-working people who pay their bills, who have families and even stand out as examples of what “success” looks like. We are often people sitting at the desk next to yours at work, in the pew at church, helping you move. Addiction, in many cases, is hidden. The turmoil is internal and unseen.
