부교재/빠른독해 바른독해 구문독해 2019.05.30 16:51
11강 1번 Over time, certain biological and behavioral features of humans stop serving a purpose. Instead of disappearing completely, they remain intact but have no function. This is what happened with the grasp reflex. If you place an object in an infant’s hand, he or she will automatically grab it. This reflex was helpful for our distant ancestors whose babies held tightly to their mothers’ fur. ..