You find a plant that is larger than others in your wheat field. when you examine the chromosomes of this plant during cell division, you observe that the cells have double chromosome numbers of the other wheat plants. you conclude that this is an autopolyploid plant representing a new biological species in your wheat field when you observe: a) fertile tetrapods produced by self-pollinating. b) production of hybrid organisms. c) allopolyploids interbreeding with parents. d) ancestral sterile plants.