Answer:
A bacteriophage attaches itself to a susceptible bacterium and infects the host cell. Following infection, the bacteriophage hijacks the bacterium's cellular machinery to prevent it from producing bacterial components and instead forces the cell to produce viral components.
 
        
             
        
        
        
The eubacteria is photosynthetic, like a plant is. 
        
                    
             
        
        
        
Answer: 
It is a beneficial mutation.
Explanation: Mutations are permanent changes in the nucleotide sequence of a DNA. Mutations can beneficial, neutral and harmful or deleterious. When change in the nucleotide sequence of DNA a mutation enhances the effectiveness of a protein or improves the protein function, it is said to be beneficial. When a mutation causes the synthesis of a protein which have the same amino acid as the original protein and performs the same function as the original protein, it is said to be silent or neutral. When a mutation results in the synthesis of a protein with an altered amino acid sequence and a nonfunctional protein, it is said to be harmful.
 
        
             
        
        
        
Answer:
c. The products of one process are the reactants of the other process
Explanation:
CARBOHYDRATE and oxygen  is the product of photosynthesis while it is reactant in respiration.
Similarly, Carbon dioxide is the reactant of photosynthesis while it is product of respiration.