They can be described through GENOTYPE because dominant always shows through phenotype.
 
        
                    
             
        
        
        
The statements above are true;
In a host-versus-graft rejection the recipient's immune system recognizes the donor's tissue as foreign and rejects the transplant. On the other hand, in a graft-versus-host rejection, the donor tissue recognizes the recipient's tissue as foreign and the transplant rejects the recipient, causing destruction of the recipient's tissue and possibly death. Its important also to note that there are two types of rejection, the acute rejection, where the rejection of transplanted tissue that occurs several weeks after transplant. it is delayed hypersensitivity reaction, and the chronic rejection is a rejection of transplanted tissue that can occur at a late time. Immune complexes form in the arteries supplying the graft, choking off the blood supply and the tissue is rejected. 
        
             
        
        
        
Answer:
True
Explanation:
Earth's radiation, that is, the energy that comes from the reflection, absorption, storage, and distribution from the Sun among the spheres play a major role in the climate systems. 
The ultraviolet and visible energies from the Sun are the main drivers of the Earth's climate systems as the interaction between the particles of aerosol that are present in the atmosphere and the radiation from the Sun lead to the warming of the atmosphere.
Therefore, the answer is True.