It is in between our joints to hold bones together along with muscle 
        
             
        
        
        
Explanation:
Simple Diffusion across the Cell (Plasma) Membrane The structure of the lipid bilayer allows only small, non-polar substances such as oxygen and carbon dioxide to pass through the cell membrane, down their concentration gradient, by simple diffusion.
 
        
             
        
        
        
Yes. No cancer and heart disease would save millions of lives.
        
                    
             
        
        
        
According to science, D would be the correct answer. Hope this helps!
        
                    
             
        
        
        
What organ integrates the brain nervous organs with the endocrine system? Hypothalamus