While the distinctions among corals, coral communities, living coral reefs, and coral reef systems (or ecosystems) are both real and important, these categories are often confused.
(the distinctions among corals, coral communities, living coral reefs, and coral reef systems (or ecosystems; are; both real and important) (these categories; are; T:often; confused)
the distinctions among corals, coral communities, living coral reefs, and coral reef systems (or ecosystems these categories
are are
both real and important
T:often confused