Answer:
The extinction of a large number of species within a relatively short period of geological time.
 
        
                    
             
        
        
        
Let me help you... Okay, so, since the plant breathes only Carbon Dioxide, we can infer that that is a vital element in photosynthesis, which allows the plant to create sugars, or food, for itself. Without any air to breathe, the plant would first, sufficate, and second, no sugars will be created.
        
             
        
        
        
Goal is to slow down or cure the genetic disease by repairing the damaged gene that caused the disease.
        
                    
             
        
        
        
Explanation:
In biology, homeostasis is the state of steady internal, physical, and chemical conditions maintained by living systems.This is the condition of optimal functioning for the organism and includes many variables, such as body temperature and fluid balance, being kept within certain pre-set limits (homeostatic range). Other variables include the pH of extracellular fluid, the concentrations of sodium, potassium and calcium ions, as well as that of the blood sugar level, and these need to be regulated despite changes in the environment, diet, or level of activity. Each of these variables is controlled by one or more regulators or homeostatic mechanisms, which together maintain life.
 
        
             
        
        
        
A is correct is the answer