Between 1945 and 1964 there was a rise in births in many parts of the World, including Europe and America.
The reason for this was that people felt more optimistic after the war and that many men came back home and married.
We call these children Baby Boomers.
Its called a double helix and nucleotides i believe are in each chain
Answer:
Classical conditioning
Explanation:
Sam is trying to condition his dog to salivate to a bell. He rings the bell and immediately after, while the bell is still ringing, he places food in the dog's mouth. Sam is using classical conditioning.
With the continued use of this conditioning, the dog with time will learn to associate ringing of bell to its feeding time.
<u>Similarities between America and Europe:</u>
Both introduced new crops like corns, beans and potatoes. The interaction between Europe and America led to the spread diseases like malaria which spread from Europe to America leading to decline in population of America. Foreign animals were exchanged between America and Europe. America got horses and pigs while Europe got animals like alpacas and pack animals.
<u>The differences between Europe and America:</u>
In America, the spread of diseases led to a decline in population whereas In Europe because of valuable crops, the population increased. For America, the environment changed because of overgrazing by animals but for Europe, the environmental impact was minimal.
