Gasoline igniting doesnt change physically, wood rotting is just it getting old i guess, i would say d because its from water to vapenation. im really bad in school so im not sure but i decided to answer
        
                    
             
        
        
        
C preserved bone because none of the others were enough
        
                    
             
        
        
        
<span>Nicotinic acetylcholine receptors (nAChR), are <span>ligand-gated ion channels and they can be a Na+, K+ and Ca2+ ion channel. Since nifedipine is a Ca2+ channel blocker (Ca2+ channel antagonist), it might inhibit the response of acetylcholine (if its receptor is Ca channel).</span></span>
        
             
        
        
        
Answer:It is this coupling of chemistry and movement that gives proteins the ... to place the protein in a particular location in the cell—an example is the SH2 ... At one level, the cell controls how many molecules of each enzyme it makes ... One of the best understood pump proteins is the calcium transport protein from muscle cells.
Explanation:
Hope this helps.