Answer:
A
Explanation:
 Im not pretty sure it's true or not.sorr if it not true
 
        
                    
             
        
        
        
Hello Pgoodrichstat!
The process that helps gas exchange occur is called diffusion.
Cheers!
-Blizzard
        
                    
             
        
        
        
Answer: flagella
Explanation: not sure but i believe it is
 
        
                    
             
        
        
        
The answer is 
Dominant Trail
        
             
        
        
        
Choose all that apply. 
Atoms__. 
V A. Normally have no change 
B. Are made of ions and electrons 
C. Are the smallest unit of matter 
V D. Are made of electrons protons and neutrons