<span>the cell is the basic unit of a living the</span> cellular level of an organism is where the metabolic processes occur and keep the organism alive that's why it is referred to the basic unit of a living thing
        
             
        
        
        
It is called coevolution, when two species influence each other's speciation. 
        
             
        
        
        
The answer is C) Increase genetic variation and breed plants to contain the wild variety.
        
                    
             
        
        
        
<span>The correct answer is: It is used to synthesize ATP through substrate-level phosphorylation.</span>  
<span>The free energy released as electrons are passed from photosystem II to photosystem I drive pumping of H+ and building a gradient. H+ flow down their gradient and when they pass through ATP synthase, the ATP is produced by substrate-level phosphorylation (ADP+Pi).</span>
        
             
        
        
        
If a person is "sterile", this means that they cannot reproduce. The word "sterilized" is essentially stating that there is no productive activity in order to be able to reproduce.