Explanation:
cholesterol helps keep the plasma membrane hydrophobic. 
I think this is the answer but I am not sure if it's correct or wrong 
but ik that plasma membrane has a little bit of hydrophobic and hydrophilic regions 
 
        
             
        
        
        
Answer:
Blood carries the oxygen through out the body and gets re-oxygenated to keep the body going.
Explanation:
Just trust me.
 
        
                    
             
        
        
        
After the Big Bang happened, the universe is constantly expanding. The Universe has expanded for around 13.7 billion years. The further a galaxy is, the faster it would move away from Earth. This principle is called the conservation of momentum.
 
        
                    
             
        
        
        
What’s the rest of the question??