Answer:
This electron handoff from NADH to FMN, as opposed to direct reduction of CoQ by NADH, a critical component of the electron transport chain is important for Signaling Transduction and Metabolomics
Explanation:
The NADH-CoQ reductase reaction is catalyzed by Complex I. In this course of activity, following events takes place-  
a)	FNM (NADH dehydrogenase flavoprotein) is reduced by the NADH  to FMNH2 through following reactions –  
NADH+H++E-FMN↔NAD++E-FMNH2
b)	In the next phase coenzyme Q  receives electron from FMNH2  through the the iron–sulfur centers of the NADH-CoQ reductase
c)	The iron atom undergoes oxidation–reduction cycles to conserve  mitochondrial protein  as lataxin and hence transport protons from the matrix to the intermembranal space thereby Signaling Transduction and Metabolomics
 
        
             
        
        
        
Explanation:
liway sm but i don't know that 
 
        
                    
             
        
        
        
Answer:
Bottle 2 and bottle 4
Explanation:
Whenever fermentation occurs the liquid experiences natural carbonation in a way. For example if you've ever seen a bottle of kombucha you'll see that it's constantly bubbly and it never stops bubbling. So the production of oxygen inflated the balloons.
 
        
                    
             
        
        
        
Answer:
It shows which consumes which. A basic food chain.
Explanation:
Wherever the arrowhead is pointed at, shows that it consumes the specie next to the nock. For example, the arrow on the left has its arrowhead directed at the butterfly. This means that the butterfly consumes the flower. The next arrowhead points at the bird, which means that this bird consumes the butterfly.
 
        
                    
             
        
        
        
The answer is going to be B