Answer:
sorry I don't know the answer
Natural barriers isolated China from the rest of the world. This caused communication and interaction from different civilizations to occur. However, this also allowed China to be more protected from its enemies.
Answer:
Is initially neutral, and then comes to trigger a response.
Explanation:
In classical conditioning the conditioned stimulus is a previously neutral stimulus which gradually comes to cause a conditioned response after being associated with the unconditioned stimulus. Classical conditioning is a type of learning in which a conditioned stimulus is combined with an unrelated unconditioned stimulus to elicit a behavioral response known as a conditioned response. A response occurs with more regularity in a well-specified, stable environment. One of the key components of conditioning is a conditioned environment.
In 1750 slaves on farms had to seperate seeds from the cotton. As history went on the cotton gin was invented. The cotton do twoce the work a slave could do in a day. It was also cheaper to use a cotton gin than a real person.