Coral reefs are large skeletal structures of marine invertebrates known as corals. Rock formation corals are also known as “hermetic” or “hard” corals because calcium carbonate extracted from seawater is a hard and durable “ex exoskeleton” to protect the soft, floral material of the coral.Is to create. Other coral species that are not involved in rock formation are called “soft” corals. According to the Coral Reef Alliance (CORAL), a non-profit environmental organization, these corals are often flexible creatures similar to plants and trees, including “sea fans” and “sea whips”. Whip)) ” Also, every single type of coral is called a “polyp.” Coral polyps live on their ancestral “calcium carbonate exoskeleton” and add their own explore to the existing coral structure. Over the centuries, the coral reef gradually grew, one small precipice at a time, until it became a massive creation of the marine environment. According to the CORAL Reef Alliance (CORAL), there are hundreds of different species of coral. Corals come in a variety of bright colors and textures. There are intricate corals ranging from round, bent brain corals to colorful “sea whips” and “sea fans” that look like colorful trees or plants. Corals include jellyfish, anemones, Portuguese man’s warp, and other gelatinous and marine invertebrates. Phylum cnidaria. Corals feed in two ways. Some species use small tentacles on the outer edges of their bodies to catch small marine life, such as fish and plankton. However, most corals rely on algae called “Suxantella” to provide energy through photosynthesis. According to the US Environmental Protection Agency (EPA), corals are mutually beneficial to zoos. These algae live in coral polyp bodies, where they synthesize photosynthesis and produce energy for themselves and the polyp. Provides a home for polyps, algae, and carbon dioxide. In addition, zooxanthellae give corals a bright color. Most coral polyp bodies are clear and colorless without Suxantella. Some corals like brain coralsSpecies are “hermaphrodite”, which means they produce eggs and sperm at the same time. Sexual reproduction occurs during the coral coloring process. For some species, it occurs only once a year. Other species, such as the elkhorn coral, are called gonorrhea, meaning that they all colonize into male or female colonies. In every coral colony, polyps produce only eggs or sperm. For successful reproduction, one coral colony must connect with the neighboring coral colony that produces the other reproductive cell.