Answer:
Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor.
Hope I helped! :)
 
        
             
        
        
        
Caverns most commonly form in limestone
        
                    
             
        
        
        
Answer:
 It is explain about how is the cell division.and what are the examples for it.
Thera are two type of cell division.
1. Mitosis.
2.Meiosis
 
        
             
        
        
        
Drinking salt water is harmful because it messes up the salt concentration in each of your red blood cells. It over loads the salt in it and causes the cell to swell up and burst due to it trying to let in more water to balance the salt concentration out. 
        
             
        
        
        
C It controls what is allowed to enter or leave the cell.