December 21

Formation of coral reefs.


Coral reefs are formed by coral polyps, which are small, soft-bodied animals that belong to the phylum Cnidaria. These polyps secrete a hard, calcium carbonate exoskeleton, which provides them with protection and a place to attach themselves to. Over time, the exoskeletons of multiple coral polyps can accumulate and form the foundation of a coral reef.

Coral reefs typically form in shallow, tropical waters where the temperature is warm and there is a high level of sunlight. The coral polyps require sunlight in order to perform photosynthesis and produce the energy they need to survive. They also need a constant supply of nutrients, which they get from the water around them.

Coral reefs can take hundreds or even thousands of years to form, and they are extremely delicate and sensitive ecosystems. They are vulnerable to a variety of threats, including pollution, overfishing, and climate change, which can damage or destroy them. As a result, it is important to protect and preserve coral reefs so that they can continue to support the diverse array of plant and animal life that depends on them.


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