B) It requires energy
D) It involves the help of carrier proteins. 
        
             
        
        
        
Answer:
The plantlets have a different genetic code from the parent plant. This represents asexual reproduction. The plantlets are the same size as the parent plant.
Explanation:
 
        
                    
             
        
        
        
Answer:
The digestive system works very closely with the circulatory system to get the absorbed nutrients distributed through your body. ... While the digestive system collects and removes undigested solids, the excretory system filters compounds from the blood stream and collects them in urine.
        
             
        
        
        
To have an overall positive or negative charge. (as opposed to neutral one)