A song that has to constructing section is called​

Explanation:

The terms chorus and refrain are often used interchangeably, both referring to a recurring part of a song. When a distinction is made, the chorus is the part that contains the hook or the "main idea" of a song's lyrics and music, and there is rarely variation from one repetition of the chorus to the next.

i think these large heads represent their gods and i do think they were worshiped by the people. if there was only one head and no heads around it i think it would be monotheistic but if there are several heads close to each other it could be polytheistic.