Usa "ivan pavlov" in una frase

1. by Ivan Pavlov in the early part of the 20th century; and (2)Operant Conditioning was discovered

2. "Ivan Pavlovich Kornilov is far from being a favourite in the Colonel's security books," said the sergeant, turning as if he abhorred the sight of chained prisoners

3. "It's orders, Ivan Pavlovich

4. physiological responses to stimuli (Ivan Pavlov was the founder