A key issue in the post-Civil War era, the 14th Amendment guarantees which of the selections below under the laws for all citizens?

Personality traits.. .remain stable throughout life ..change at different rates to different degrees ..are more obvious during childhood ..all of the above

The government has the right to restrict the number of people who visit the white house. this is an example of a government exercising its

Chen's research team randomly assigned some newborns and their mothers either to a breastfeeding promotion group (where breastfeeding was encouraged, but not required) or to a normal pediatric care group (where breastfeeding was neither encouraged nor discouraged). which research method did they use?