<span>vegetative propagation.
Budding and grafting. It is mainly used for propagating a plant. In layering sometimes the portion of the aerial stem grows roots while it is still attached to the main plant and then it is separated from the main plant and allowed to grow on its own. This is another technique used for layering. </span>
        
             
        
        
        
Answer:
Most pre-mRNA molecules have sections that are removed from the molecule, called introns, and sections that are linked or together to make the final mRNA, called exons.
 
        
             
        
        
        
Answer:
Explanation:
attempted to control their population growth
 
        
             
        
        
        
Answer:
needle
Explanation:
Asepsis refers to the absence of bacteria, viruses, and other microorganisms. When handling a syringe the user can handle all parts of the syringe except for the needle. As soon as the needle comes into contact with anything it can immediately come into contact with bacteria, viruses, and other microorganisms. Which can cause an infection in the individual on which the syringe is being used on.