Simplify the following text for a Grade 13 native English-speaking person.
Original: Although now a single kingdom , certain aspects of the former independent kingdoms remained separate , in line with the terms in the Treaty of Union : Scottish and English law remained separate , as did the Presbyterian Church of Scotland and the Anglican Church of England .
Simplified: Certain aspect of the former independent kingdoms remained separate . Examples of Scottish and English institutions which were not merged into the British system include : Scottish and English law which remain separate , as do Scottish and English banking systems , the Presbyterian Church of Scotland and Anglican Church of England also remained separate as did the systems of education and higher learning .