There is no definitive answer to this question as it depends on the laws of the country in which the child lives. In general, however, an adopted child does not have more rights than a biological child. Both types of children have the same legal rights to inheritance, citizenship, and financial support from their parents. In some countries, adopted children may have additional rights, such as the right to access their birth records or the right to be placed with adoptive parents who are of the same ethnic background.