Answer:
Process of photosynthesis takes place. 
Explanation: 
When carbon dioxide comes inside the leaves from their stomata then water and carbon dioxide combine and form a six-carbon compound having six oxygen and twelve hydrogen compound as well. This process is called photosynthesis. The glucose formed in this process is used by plant and animal too. So this process is necessary for life on this earth.
 
        
             
        
        
        
MDMA is what came before ecstasy and had an amazing ability to boost productivity and help people work through difficult and deep emotional wounds that were too difficult to talk about when sober. therapists would give small amounts of MDMA to patients to help talking about trauma.
If you want a medical drug then colistin is a third wave antibiotic that kills off bacteria that would be far too strong to be killed with 1st or 2nd wave antis. colistin helps save peoples lives.
        
             
        
        
        
 A.) The cell prepares for cell division.
        
             
        
        
        
In my opinion mixed layers would be the best choice