It produces lymphocytes, is important for T cell maturation (T for thymus-derived). The spleen is an organ in the upper left abdomen, which filters blood, disposes of worn-out red blood cells, and provides a 'reserve supply' of blood. It contains both red tissue, and white lymphatic tissue. Hope that helped!
        
             
        
        
        
Answer:
if ur asking which one of those answer choices is the right one, it's D! Deliver oxygen to every blood cell <3 
Explanation:
This involves transport of oxygen from the lung to the tissues by means of the circulation of blood.
 
        
                    
             
        
        
        
<span>This is true. Extension is the opposite of flexion, they're like antonyms, so hyperextension would be an extension even beyond that, or in this case, it would be in the opposite direction of the flexion of a joint. That is why the answer to this question should be true.</span>