As an example I will tell you how to extract DNA from peas
1. Blender insanity 
<span>The blender separates the pea cells from each other, so you now have a really thin pea-cell soup
</span>2. Soapy peas
3. Enzyme Power
4. Alcohol Seperation 
        
             
        
        
        
Are there choices to choose from, because that is a very general question?
        
             
        
        
        
Answer:
Exponential growth assumes that environmental factors like food, water supply, space, shelter, disease organisms, predators, weather conditions, and natural disasters do not affect the birth or death rate. As long as birth rate exceeds death rate (even slightly) population size will increase exponentially.
Explanation:
 
        
                    
             
        
        
        
In the meaning of wave x it would be solid