Question

Coral formations _________.

Answer 1

Answer:

D. are made of animals living symbiotically with simple algae

Explanation:

Coral formations are made of animals living symbiotically with simple algae

The formation of Corals commenced when free-swimming coral larvae merges to submerged rock or other available surfaces along the edge of a island or continents.

Coral formation are generally divided in four classes by the scientist, They are:

1)Fringing reefs

2) Barrier reefs

3)atolls reefs

4)patch reefs