After DNA is duplicated it is called replication, it looks like this
 
        
             
        
        
        
Answer:
<u><em>Hawk </em></u>
Explanation:
Biomagnification can be described as the accumulation of substances like toxins, pesticides etc in tolerant organisms. The biomagnification tends to increase as the trophic levels of a food chain increase. This is because these substances get more and more accumulated as they move up a food chain.
In the example of the food chain mentioned in this question, the highest trophic level is of hawks, so they will be subjected to the greatest biomagnification. 
 
        
             
        
        
        
Well, biotic factors are living things in an ecosystem such as animals or insects. Abiotic factors are non living things in an ecosystem such as sunlight or temperature. I would say biotic factors would be more harmful since this includes bacteria or other diseases, not many abiotic factors would pose a great threat to the entire human species. Hope this helped.
        
             
        
        
        
It is a semiconductor. A semiconductor can allow a bit of energy to flow through. It is also a metalloid. Hope this helps! :)