Answer:
The chemical reaction is: AB + CD ---> AC + BD  (ΔH=  - )
Explanation:
After the reaction between two reactants, two products are generated. 
As the products have less energy than the reactants, this energy is released and ΔH is negative
 
        
             
        
        
        
Answer:
An absorption spectrum illustrates the spectrum of light or electromagnetic radiation absorbed by the plant. This relies upon the molecular and cellular build-up of the plant. An action spectrum illustrates the spectrum of electromagnetic radiation most efficient for photosynthesis.  
The action spectrum of photosynthesis monitors the absorption spectrum of chlorophyll. The absorption spectrum suggests that how much of each wavelength chlorophyll will captivate, while the action potential can indicate to us about the wavelengths that are most operative for photosynthesis.  
 
        
             
        
        
        
Answer:
option 3
Explanation:
In non-homologous end joining, the break ends are directly ligated together without the need for a homologous template unlike the homologous repair. this form of repair uses short homologous sequences of DNA termed microhomologies to direct repair and these microhomologies are seen as single-stranded overhangs found on the ends of double-strand breaks. When the overhangs are perfectly compatible, NHEJ ligates and repair the break. When these overhangs are not compatible, imprecise repair leading to deletion of nucleotides can also occur which is much more common .
 
        
                    
             
        
        
        
Answer:
 It occurs in Yogurt Bacteria
 
        
             
        
        
        
They are all made to do a different and specialized job