All this still doesn’t answer the question of why we laugh at all. One idea is that laughter and tickling originated as a way of sealing the relationship between mother and child. Another is that the reflex response to tickling is protective, alerting us to the presence of crawling creature...
12What type of writing is not reviewed extensively on the Web? 13Which publication invited authors to publish their articles on the World Wide Web? ---End of the Test--- Please Submit to view your score, solution and explanations.