Buboy Canner improperly canned some home-grown vegetables and contracted botulism poisoning after eating them. Botulism results from a toxin, produced by bacteria, that prevents skeletal muscles from contracting. Symptoms include difficulty in swallowing and breathing. Eventually, Buboy died of respiratory failure because his respiratory muscles relaxed and would not contract. If botulism toxin affects the neuromuscular junction, propose as many ways as you can to explain how botulism toxin produced the observed symptoms.