Answer:
0.09641
Explanation:
not sure how to explain if its milligrams and kilograms
 
        
             
        
        
        
Cell membranes help organisms maintain homeostasis by controlling what substances may enter or leave cells
        
             
        
        
        
Answer:
The gulf of mexico is to oil as coal is to fires
Explanation:
 
        
             
        
        
        
Answer; 
Antibodies.
The human immune system fights infection by releasing antibodies. 
Explanation;
The immune system acts to defend the body against pathogens such as viruses, bacteria and fungi that may cause a disease. 
It does so using various types of mechanism, one is by the production of antibodies. 
Antibodies are proteins that are produced by the B-cell and are used by the immune system to identify and neutralize pathogens.
These antibodies also activates proteins known as complements which assist in the killing of bacteria, viruses and the infected cells.