Answer:
no 1 ok 
Explanation:
because it controls the raye pf breathing so 
 
        
                    
             
        
        
        
Answer:
plasma membrane
Explanation:
The plasma membrane is also known as the cell membrane. It is the boundary between the internal components of a cell and its external surroundings. It controls the entry and exit of substances into or out of the cell and thus, facilitates the exchange of substances between the cells and their external environment.
 
        
             
        
        
        
The Binomial Naming System.
        
                    
             
        
        
        
Answer:
It would be harder for the hemoglobin to move oxygen throughout the body because of how sickle cell looks/ its structure.
Sickle cell is a red blood cell but looks like a hook (in my opinion) while red blood cells are typically round, making them easier to transport in veins. due to the shape, it is harder for the blood to be transported.
Explanation:
 
        
             
        
        
        
Answer:
excretory system
Explanation:
The excretory system is the system of an organism's body that performs the function of excretion, the bodily process of discharging wastes. ... There are several parts of the body that are involved in this process, such as sweat glands, the liver, the lungs and the kidney system. Every human has two kidneys.