Pavlov found that when he paired painful stimuli with food, the dog came to show no distress at the painful stimuli. this experiment may explain behavior in humans

Why is china building islands in the south china sea?

Passing laws, creating courts, and collecting taxes are examples of

Think about the different ecosystems we would find while studying the physical geography of the united states. which ecosystem do you live in? in a short paragraph, describe the ecosystem that surrounds you. what kinds of plants and animals are common in your area?