Answer: I believe the answer is D because I know that you can't kill a eagle in the U.S. because it is a protected species. 
 
        
             
        
        
        
Answer:toxic
Explanation:
A ureotelic organism excretes excess nitrogen as urea. Urea is less toxic and needs less water in comparison to Ammonia. Ureotelic organisms include cartilaginous fish, few bony fishes, adult amphibians and mammals including humans. The uricotelic organism excretes uric acid or its salts
 
        
             
        
        
        
By intruding mutations, which are the ultimate source of biological diversity. I think this is it.
        
             
        
        
        
Answer:
4.) This means that height in a rat is controlled by many different genes.
Explanation: