Answer:
It’s possibly b, or a but I am definitelyonly 49% sure
Explanation:
Hope this helped you Arianna!
 
        
             
        
        
        
Answer:
Major histocompatibility complex (MHC) antigens
Explanation:
The process in which recipient body rejects the transplanted organ is called a allograft rejection or transplantation rejection.
A transplanted organ contains Major histocompatibility complex (MHC) antigens which are required to be accepted by the recipient's body to function properly but T cells in recipient's body become alloreactive and recognize MHC antigens (donor-derived antigens) as foreign and starts making antibodies against it. Which means the recipient's body is rejecting the  transplanted organ.
Hence, the correct answer is "Major histocompatibility complex (MHC) antigens".
 
        
             
        
        
        
we are not "made of stardust" we just are 40% stardust(an impressive amount seeing as the stardust atom is heavier than normal atoms).
 
        
             
        
        
        
Answer:
The leaves no longer have water, which means that there is little osmotic pressure which keeps it turgid.
Explanation:
The stem still contains water because of the capillary action that occurs. However, since there is no strong attraction, the water cannot be pulled to the leaves.