Something about the Artic Biome And desert biome
        
                    
             
        
        
        
Widened margins does not occur at the continental margin
        
                    
             
        
        
        
Answer - B. Kidney function is controlled by the blood's composition and hormones.
Reasoning - Well to start off the kidneys (main) purpose function is to clean your blood which is very Important with blood composition. Second It can also and will excrete it through urine which is pretty much what it does. Oh and also a little bit of hormones. 
 
        
        
        
<h3> Answer</h3>
alveoli
<h2> Explanation</h2>
During gas exchange oxygen moves from the lungs to the bloodstream. ... This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
 
        
        
        
Igneous rocks are made from solidified magma. 
Hope this helps!!