It’s the first one!
compact bone is a dense bone with a bony matrix that is solidly filled with arya if ground substance and inorganic salts, leaving only tiny spaces (lacunae) that contain osteocytes, or bone cells. Immature compact bone DOES NOT CONTAIN OSTEONS and has a woven structure. 
hope this helps!
        
             
        
        
        
Traits are inherited trough the parents genes that are passed to the offspring trough both parents reproductive cells, that contain genes in their nucleus.
Hope it helped,
Happy homework/ study/ exam!
 
        
                    
             
        
        
        
The correct answer would be:
<em>Cycles.</em>
 
        
                    
             
        
        
        
Answer:
speed up the rate of virtually all of the chemical reactions that take place within cells.
 
        
                    
             
        
        
        
Answer:
what kind of quastion is this
Explanation: