The only other NFL-AFL death that has been attributed directly to a hit on the field also occurred in the fledgling AFL. New York Titans rookie offensive guard Howard Glenn, 24, died hours after a game in October 1960 in Houston, the cause of death also cited as a broken neck.
Human is a complex organisms because humans are made up of trillion of cell and a lot of system and organ .Some of the major systems are blood circulatory systems, the skeletal system, the digestive system, the nervous system and the respiratory system.
Humans are not complex. All life on earth have the same type of information coding which is dna. (Including virÃ¼ses. By the way viruses are as alive as humans if you ask me. Why? Because you will see that humans are just another animals that live to protect and spread their dna. All living things(except for smar humans ) live just to protect and spread their dna(even if they dont realise it). So virÃ¼ses do what other living things do.