Why corals belong to animals

Coral is a general term in coelenterates, and in daily life, people call it "coral" if it has a strange shape, delicate and transparent and comes from seafood, and all "red" people are collectively called "red coral". Corals typically include soft corals, gorgonians, red corals, stony corals, horn corals, hydra corals, blue corals, and sheng corals. Soft sea gills (pennatulacea) and colony anemones (zoantharian) are also mistakenly referred to as "corals".

The main body of the reef is made up of polyps. The polyp is a coelenterate in the ocean, which feeds on the small plankton in the ocean, and can absorb calcium and carbon dioxide from the seawater as it grows, and then secrete limestone, which becomes its own shell. Each individual polyp is the size of a grain of rice, and they live in groups of co-packs, metabolizing, growing and reproducing from generation to generation, while secreting limestone and bonding together.

These limestones are then compacted and petrified to form islands and reefs, also known as coral reefs. Due to the attachment of polyps, many coral reefs often have large numbers of polyps attached to their bottoms.

The coral, which has been formed for a short time, has a bright color and unique shape, and is a rare and valuable work of art.

Polyps do not have chlorophyll in their bodies, and their bodies are composed of two layers of cells and a mesocolloidal layer, and they rely on the tentacles around their mouths to catch passing plankton for food, and can carry out budding reproduction and sexual reproduction, which is in line with the basic characteristics of coelenterates phylum animals, of course, animals

There are many beautiful corals in the sea, colorful and varied. Some of them are like pine trees, some are like flowers, and they really look like plants of all shapes and sizes.

However, beautiful corals are not plants, but bones left behind after the death of a colony of polyps. Living polyps have tiny and soft bodies and are connected to each other, so they are called polyp colonies. The co-flesh part of the skeleton secretes limestone, and when it accumulates more and more, it forms a beautiful coral.

Many of the world's coral islands and reefs are made up of bones secreted by polyps. The famous Great Barrier Reef in Australia is the largest and most beautiful coral reef in the world, and is visited by thousands of tourists every year.

Corals are not animals, nor plants, but secretions of polyps.

Corals are the secretions of polyps. But it's right to say it's a living thing, because it's like a diatom with its siliceous shell.

Corals are not animals, nor plants, but are the secretions of polyps asking you to be wrong.

I vaguely remember that corals are coelenterates, and it already has an endoderm, a digestive circulatory cavity, symmetrical on both sides, and clouds, such as red corals, which are of the corals.