🧠The dog was barking loudly at the person who was walking by the house.

🔑:The dog barked loudly at the passerby.

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🔑:Classical conditioning involves associating an involuntary response with a stimulus, as demonstrated in Pavlov’s experiments with dogs. Operant conditioning, on the other hand, involves modifying voluntary behavior through rewards or punishment, as explained by B.F. Skinner.

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🔑:1. A medium apple - around 95 calories. 2. 1/4 cup of hummus with cucumber slices - approximately 120 calories. 3. A small handful of almonds (about 12) - roughly 85 calories. 4. 1 cup of air-popped popcorn - about 30 calories. 5. A small Greek yogurt (100g) - around 100 calories.

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🔑:The color blue often represents tranquility, sadness, and depth in art and literature. It can symbolize the divine, reflect emotional states, and evoke a sense of calm. In contrast, it may also hint at melancholy and longing, enhancing narrative themes.