Answer:
they use to live
Explanation:
As they breath out carbon dioxide the plants take in the carbon dioxide and make air with it. Animals also use air to do their day to day things like eat.
 
        
             
        
        
        
1st -When cells are small, the movement of food and waste can be efficiently handled by the cell membrane
        
             
        
        
        
A pollen, Most plants produce asexually , and pollen is produced. 
        
             
        
        
        
I would choose the option D.
D. It remains tightly coiled at the G1 phase.