It depends on which virus you are referring to specifically. Viruses come in many shapes and types; their variations are tremendous.
For HIV and Influenza, viruses acquire their envelops after maturation, during the budding off or detachment stage from the host cell.
Hope this helps! :)
        
             
        
        
        
Answer:
What is the most in danger from the effects of overfishing?
Animals that are normally eaten by fish.
Explanation:
There will be distruption of the food chain as the feeding pattern of those that feeds on fish changes as a result of scarcity of fish in the ocean due to overfishing which poses a danger
 
        
             
        
        
        
The R group varies, and it is the carbon-phosphate backbone
        
             
        
        
        
The answer is Environmental issues.