Answer:
Move to the opposite sides of cell
Explanation:
 
        
             
        
        
        
Question 1) Photesphere 
Question 2) core 
Question 3) The suns gravity keeps them in place 
Question 4) True 
I'm not 100% about question 1 it's either photesphere or core, but I think Photesphere is correct
 
        
             
        
        
        
White Blood Cells (WBC), produced by the stem cells found in the bone marrow, manufacture antibodies used to counter the effects of the antigens. 
The White Blood Cells are known to provide immunity to the body against foreign bodies like bacteria, virus, proteins, etc. The lymphocyte cells, namely, the B-cells and T-cells are the two key cells that make antibodies for various antigens and kill or lyse the foreign body by recognising the antibiotic marker attach to them.