Describe the two most important events in the history of animal life that occurred at the beginning and at the end of the paleozoic era. list and briefly outline the six different periods into which the palezoic era is divided.

United states v. reynolds stands for all of the following, except: parents may not withhold medical treatment even if they have a good faith religious belief against such treatment. human sacrifice may be banned by the government without violating religious freedom. polygamy may be banned by the government even when it is required by a religious practice. women in polygamous marriages do not have the right to vote.