Well, different organisms require different things. A single celled bacteria does not need a lot at all compared to a plant or animal. One cell can support a bacrerium. An animal needs many cells to carry out the functions necessary for it to live.
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Answer:
Improving food storage facilities
 
        
                    
             
        
        
        
A virus structure can be  on of the following: icosahedral, enveloped,  complex and helical. These viruses can appear to in a shape but a closer, more steady look reveals that they are actually icosahedral.
 
        
             
        
        
        
When the two atoms are split
        
             
        
        
        
Answer:
They face vary of things such as asexual reproduction 
Explanation: