<u>Sect </u>- a term used to describe a relatively small religious organization that has split off from a <em>denomination</em> due to small religious differences, i.e. Jehovah's witness.
<u>Denomination</u> (which a sect splits off from) is a well-established religious orgaization in which a large part of the population are members, i.e. Judaism, Catholicism.
Tropical rainforests have the most diversity of any other ecosystem
