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. 
 
        
        
        
It is the largest organelle in the cell and it contains the DNA of the cell. DNA (Deoxyribonucleic Acid) contains all the information for cells to live, perform their functions and reproduce. Inside the nucleus is another organelle called the nucleolus. The nucleolus is responsible for making ribosomes.
        
                    
             
        
        
        
The skeletal tissue is responsible for the movement in our body :)
        
             
        
        
        
Answer:
It would keep going at constant speed.
Explanation:
The bicycle would keep going at constant speed because of inertia. Objects in motion stay in motion unless they are disturbed by an external force.