While hiking, Ms. Smith comes across a rattlesnake in her path and starts screaming. It is likely that the has been activated in her brain, given its role in the emotional response of fear in humans.

Amygdala

Explanation:

Amygdala is found in the brain and is responsible for emotions such as anger, fear, sadness and how aggression is handled.

Bill Clinton was elected the 42nd President of the United States and Al Gore the 45th Vice President. They had succeeded in bringing the people together in their efforts to change our country. Throughout his life, President Clinton has worked to make a difference in the lives of others.