<span>The answer is: Strata</span>
        
                    
             
        
        
        
Explanation:
c a mixture is the answer
 
        
                    
             
        
        
        
Tbh I don’t know. Sorry ❤️❣️
        
             
        
        
        
Answer:
This is biomagnification, and it means that higher-level predators-fish, birds, and marine mammals-build up greater and more dangerous amounts of toxic materials than animals lower on the food chain. In this activity you will explore the biomaginification of toxic chemical, mercury, through a simple marine food chain.
Explanation:
 
        
                    
             
        
        
        
Answer:
most common samples used today Blood and Hair