Answer:
im taking this test right now whats the answer please 
Explanation:
 
        
             
        
        
        
The answer is A, storing urine until it is eliminated.
The bladder stores urine, allowing urination to be infrequent and controlled. The bladder is lined by layers of muscle tissue that stretch to hold urine. The normal capacity of the bladder is 400-600 mL. During urination, the bladder muscles squeeze, and two sphincters (valves) open to allow urine to flow out.
        
                    
             
        
        
        
Proteins  are polymers, relatively large molecules made form many smaller molecules. Each  protein molecules is  built up from amino acids, smaller monomer molecules that join end  to end to make the  protein  polymers molecule.  <span />
        
             
        
        
        
Answer:
true 
Explanation:
Thus when the positive side on one water molecule comes near the negative side of another water molecule, they attract each other and form a bond. This "bipolar" nature of water molecules gives water its cohesive nature, and thus, its stickiness and culpability 
 
        
             
        
        
        
Answer: Is a group of organisms of the same species that interbreed for example a group of robins in North America