Ababy duck runs for cover when a large object is tossed over its head. after this object is repeatedly passed overhead, the duck learns there is no danger and stops running for cover when the same object appears again. this is an example of

no, dan should reduce his discretionary spending. not long-term goals involve more planning than short-term goals do

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.