Which of the following neurotransmitters affects neurons involved in increased heart rate and the slowing of intestinal activity during stress?

Emotional understanding advances from early to middle childhood because children ____

a. become able to understand not only their own emotions, but also the emotions of others b. have formal training in school regarding emotions c. are able to play sports and to be involved in athletics, which helps them appreciate their emotions and the emotions of others d. they become intensely interested in making a good impression on members of the opposite sex

Maurice set up an experiment using a(n) ________ design, in which he would observe two or more cohorts of children cross-sectionally and/or longitudinally

Fill in the blank with correct word.