Religion and government, because he wanted them to be separated
Answer:
Explanation:
Amphibian's heart has 2 accessory chambers, Sinus Venosus (receiving blood) and Conus Arteriosus (sending blood out). Human heart does not have that chambers. Blood enters to the right auricle and then is pumped out by two ventricles.
Timelines help us line up when things happened, like if you were doing a timeline of your life for example, mark where things happened in order like when you were born, first word, first step, ect ect. Its just a way to put things in order.