The best answer would be "research reasons why species change over long periods of time" 
if not i apologize but this is my best guess<span />
        
                    
             
        
        
        
The answer is mitochondria because mitochondria is involved in cellular respiration. 
        
                    
             
        
        
        
ITS FLAGELLA THEY ARE FOUND IN ALL 3 KINGDOMS OF CELLS
 
        
                    
             
        
        
        
Answer:
prokaryotic are unicellular organisms
eukaryotic are multicellular
Prokaryotic need only one parent to reproduce
Eukaryotic need 2 parents to reproduce
Explanation:
 
        
             
        
        
        
Answer:HIV attacks a specific type of immune system cell in the body. It's known as the CD4 helper cell or T cell. When HIV destroys this cell, it becomes harder for the body to fight off other infections. When HIV is left untreated, even a minor infection such as a cold can be much more severe.
Explanation: