This is because toxins are ingested by organisms and accumulate in the fatty tissues. Theses toxins then become more concentrated in successive trophic levels of a food web biological magnification. Magnification occurs because the biomass at any given trophic level is produced from a much larger biomass ingested from the level below and therefore, top-level carnivores tend to be the organisms most severely affected by toxic compounds. 
        
             
        
        
        
Answer:
The correct answer is bronchioles.
 
        
                    
             
        
        
        
Answer: All of these aswers would be correct
Explanation:
 
        
             
        
        
        
Answer: An area with lots of different kinds of plants and animals.
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Collections of nerve cell bodies inside the CNS are called nuclei