A curve on a graph that records the situation
        
             
        
        
        
D is the answer because it does not include an egg stage as i know it dose not it does not include an egg stage  and plz i need some points i just joined few min ago
        
             
        
        
        
Constipation and diarrhea, are both caused by a similar thing. Constipation is caused whenever there is too much buildup of food, or other food based material in the intestines. Usually this passes itself, yet constipation can also cause diarrhea through a bowel movement.
        
                    
             
        
        
        
The correct answer is A. maintaining homeostasis. 
Homeostasis is a term referring to an organisms continuous process of maintaining and auto-regulating the conditions of its internal environment. Variables such as pH, temperature, and fluid balance need to be at optimal conditions in order for the organism to function properly.
In this example, the phosphate buffer system permits the organisms to maintain a constant pH in their intracellular fluid. This is one of the organism's homeostatic mechanisms.      
        
             
        
        
        
No reaction would occur. because in PCR ,dNTP is crucial factor for polymerisation of primer . DAN polymerase bind to primer and template