Answer
a.Nicotine gum
Explanation:
Nicotine gum is a better option than smoking. As your body is gets used to less nicotine, you'll find that your cravings lessen and that's how you break your dependence on it.
Archea that lives in Yellow Stone. I hope this helps
HIV and AIDS :-
HIV infection is difficult to cure even by multiple treatment with multiple medications because this is a kind of highly communicable virus and it decreases the resistance of our body everytime . Up to date there is no systematic and effective treatment for this . Slightly it affects the whole system of our body and does not get easily treated with any special medications .
<span>As an action potential reaches a muscle cell, it triggers calcium to release from the sarcoplasmic reticulum of the cells. The calcium ions then flow into the cytoplasm and bind to the troponin and tropomyosin molecules in the actin filaments of the muscle cells.</span>