Explanation:
<u>There are many ways that drug-resistant infections can be prevented: immunization, safe food preparation, handwashing, and using antibiotics as directed and only when necessary. In addition, preventing infections also prevents the spread of resistant bacteria.</u>
 
        
             
        
        
        
It refers to making or crating new genes in form of mutation
in duplicates of old genes. It is also a mechanism in major way through new
genetic material is generated during evolution. The duplication happens in
event termed unequal crossing over or recombination between misaligned
homologous chromosomes during meiosis. 
 
        
             
        
        
        
What role do its contents play in the cell<span>? The </span>Nucleus contains<span> DNA, which is structured in the form of genes on chromosomes. Genes provide the information for the </span>cell<span> to carry out </span>its<span> functions.</span>
        
             
        
        
        
B is the answer. Typing more bc character limit
        
                    
             
        
        
        
Answer:
It means that it is trying to increase it's infectivity rate and its survivability rate in different environments.