Hello
I just learned this in health lol
Viral and bacterial infections are both spread in basically the same ways. A person with a cold can spread the infection by coughing and/or sneezing. Bacteria or viruses can be passed on by touching or shaking hands with another person.
Hope this helps 
Plz mark me as Brainliest
        
                    
             
        
        
        
Answer:
b. Elongation
Explanation:
During the start of the elongation phase of RNA synthesis, the sigma subunit of RNA polymerase of <em>E. coli</em> is released and NusA protein takes its place. This makes the RNA polymerase to move away from the promoter.
During the elongation phase of RNA synthesis, the enzyme DNA dependent RNA polymerase elongates the RNA strand by addition of ribonucleotides to the free 3'-OH end. The process occurs in 5' to 3' direction and the 3'-OH group serves as a nucleophile.  
 
        
             
        
        
        
Answer:
I'm pretty sure it's B, pressure.
Explanation:
I hope this helped :)
 
        
                    
             
        
        
        
Answer:
Emulsifier generally reduces the surface tension of the lipid  there by helping in the digestion of the lipid molecules.
Explanation:
Bile that is secreted from liver act as emulsifier because the bile helps in the break down of lipid into small molecules to form micelle thereby reducing the surface tension of the lipid molecules.
                   Due the formation of micelle the broken down lipid molecules binds to the active site of the lipase enzyme and get digested to form fatty acid and glycerol.
            Beside digestion Emulsifier Bile also helps in the absoption of lipid from the small intestine.