Anthozoan corals are characterized by all of the following except
A)some may have hard calcium carbonate exoskeletons.
B)the coral animals are always found in nutrient-rich waters.
C)some participate in the formation of shallow-water limestone ridges.
D)many harbor symbiotic algae.
E)they are a class of cnidarians.

Question

Quizplus · Accepted Answer

Anthozoan corals are not always found in nutrient-rich waters. Instead, they rely on their symbiotic algae for energy and other resources. The other choices are all characteristics of anthozoan corals.

Anthozoan Corals Are Characterized by All of the Following Except