Its An experiment because it doesnt ask a testable question
So its B
i hoped it helped SIS 
        
                    
             
        
        
        
The main purpose of seeds is to carry out reproduction so that the plants can perpetuate themselves. After pollination and Fertilization the seed formed has the capacity to germinate into an adult plant over time. It has all the necessary nutrients and food sources required for a plant to germinate and are also modified for different species to allow for further dispersal so the plant can spread more easily to better growth conditions.
        
             
        
        
        
Answer:
For a limb to regenerate, you need bone, muscle, blood vessels and nerves. There are adult stem cells, a kind of undifferentiated cell that can become specialized, that regenerate muscle, but they don't seem to activate.
 
        
             
        
        
        
D. Because experimentation includes a control group. also, independent and dependent variables are part of an experiment they arent a type of research
        
             
        
        
        
The Phleom does that action. Hope this helped! :)