Answer:
A is correct happy new year
 
        
                    
             
        
        
        
1. The sun or heat
2. It becomes Runoff
3. Animals breath in oxygen and release carbon.
4. It makes nitrogen available to other organisms
        
             
        
        
        
 
 
Spindle fibers are formed from microtubules with many accessory proteins which help guide the process of genetic division. Each spindle fiber forms during cellular division near the poles of the dividing cell. As they extend across the cell, they search for the centromere of each chromosome
 
        
                    
             
        
        
        
Hi 
Please find all answers in attached file.
Hope they help!
 
        
             
        
        
        
Answer:
c
Explanation:
the membrane is the outside layer of the cell