Answer:
Pavlov used proved his theory of classical conditioning by studying salivation in dogs. He observed an unconditioned response, the salivation, that was a consequence of an unconditioned stimulus (the meat). Then, he paired the unconditioned response with a neutral stimulus (the sound of a bell), by giving the dog the meat after ringing the bell. He found that after being conditioned, the dog salivated every time he heard the bell ring, the salivation was now a conditioned response.
They used palm leaves, clay, animal skin and paprus.
Answer:
Panama has a major trade route through the Panama canal, and they are the leaders in major natural gas trade. Panama connects North and South America. It also controls the efficiency of most trade, because most ships travel quicker through it's canal. On the opposite opinion, I think Panama is very important to the whole world! :)
1. Use diagrams for classification, not just comparison.
2. Draw diagrams to meet your needs.
3.. Draw the universal set.
4. Work your way up, from least complicated to most complicated, then you'll be accustomed to every type.
hope this helped!
(:
