Answer:
D to produce energy-carrier molecules 
Explanation:
The main function of the Krebs cycle is to produce electron carriers that can be used in the last step of cellular respiration.
 
        
             
        
        
        
Answer:
Theres no nucleus and what makes it a nucleus is the nuclear membrane. So the answer is the presence of a nuclear membrane. 
 
        
                    
             
        
        
        
Survival I think (sorry if im wrong)
        
             
        
        
        
<span>At the top of plant shoots or roots of plants is an organism called meristem. This organism produces auxin, which causes the shoot or root to grow. This shows that by pinching off the tops of the plants, it makes them grow more.</span>
        
                    
             
        
        
        
Answer:
it is tye master of the master gland bro