Explanation:
Reforestation of agricultural land can improve biodiversity, which can result in increased primary production, reduced susceptibility to invasion by exotic species and increased ecological resistance to pressures such as climate change
 
        
                    
             
        
        
        
All the members of a specific species that live in an area are a population.
        
             
        
        
        
Answer:
a
Explanation:
This is owing to some nebulae (more than one nebula) come from the gas and dust thrown out by the explosion of a dying star, such as a supernova
 
        
                    
             
        
        
        
The endoplasmic reticulum aids in the production and movement of proteins and other materials through the cell.