A typical human yawn lasts for about six seconds and once initiated,is nearly impossible to stop.Although there are many hypotheses for why we yawn,it is accepted that yawning is contagious - when we see someone else yawn,we often find ourselves yawning as well.This happens across all cultures and even in infants! In this case,the yawn an individual observes is ____________,while their own yawn is ____________.
A)an association,a conditioned response
B)a releaser,an innate behavior
C)innate behavior,habituation
D)reflex response,learned behavior

Question

Quizplus · Accepted Answer

The observed yawn is the releaser, which triggers the innate behavior of yawning in the observer.

A Typical Human Yawn Lasts for About Six Seconds and Once