Coral formations
A)tend to occur poleward of 30° latitude.
B)are made of the skeletons of animals that lived symbiotically with simple algae.
C)require water that is high in sediment concentration.
D)survive in a broad ecological range because they are tolerant of temperature,salinity,and depth variation.

Question

Quizplus · Accepted Answer

Coral formations are made up of the skeletons of animals known as coral polyps that have a symbiotic relationship with a type of algae known as zooxanthellae. The algae live within the coral and provide energy through photosynthesis.

Coral Formations