Neutron stars are created when
giant stars die in supernovas and
their cores collapse, with the
protons and electrons essentially
melting into each other to form
neutrons. Credit: NASA/Dana
Berry
        
                    
             
        
        
        
They both have cytoplasm, cell membranes, and DNA.
        
                    
             
        
        
        
Their health , medical conditions, diseases
        
                    
             
        
        
        
Domain is the most inclusive of the three, genus is the least inclusive
        
                    
             
        
        
        
Pre-embryonic cleavages make use of the abundant cytoplasm of the conceptus as the cells rapidly divide without changing the total volume.