Step 1 : Introduction to the question "5. Ivan Pavlov is most famous for his demonstrations of classical conditioning. Which household pet did he use for his experiments?"
...1. Cats 2. Tortoises 3. Hamsters 4. Dogs Pavlov noticed that dogs started to salivate when there was a stimulus that they associated with food. In the most famous experiment, Pavlov struck a bell when the dogs were given their food. After a few repetitions, the dogs began to associate the sound of the bell with being given their food. The dogs would then start to salivate just on hearing the sound of the bell.