Answer:
an organum is a form of early polyphony based on an existing plainsong.
a polyphony is the style of simultaneously combining a number of parts, each forming an individual melody and harmonizing with each other.
a gregorian chant is church music sung as a single vocal line in free rhythm and a restricted scale (plainsong), in a style developed for the medieval Latin liturgy.
Explanation:
The prefix would be epi-, as in epidermis. (The outer layer of skin)
Answer:
Plants
Explanation:
They make food from sunlight, CO2 and H2O. This process known as photosynthesis
