10 Facts about Coelenterates

Thursday, January 28th 2016. | Biology

Facts about Coelenterates talk about the two animal phyla. Both are the Cnidaria and Ctenophora. The former one includes sea anemones, sea pens, coral animals and many more. The latter one encompasses comb jellies. The word Coelenterates is taken from the word koilos. It was a Greek word which means hollow bellied. The animal was named hollow bellied because of the presence of hollow body cavity. Check other interesting Coelenterates facts below:

Facts about Coelenterates 1: the characteristics of coelenterates

Let’s find the characteristics of coelenterates. They only have two layers of cells. The body shape is in radial symmetry, while the tissue organization is very simple.

Facts about Coelenterates 2: the solitary life

The solitary lifestyle is conducted by jelly fish and hydra. Sea anemones and corals have colonial life.

Coelenterates facts

Coelenterates facts

Facts about Coelenterates 3: the habitat

If you are interested to spot coelenterates, you need to go to the sea. Most of them are considered as marine animals.

Facts about Coelenterates 4: the body

As I have stated before, coelenterates have the radial symmetrical body. The sensory tentacles can be seen around the single opening hypostome.

Facts about Coelenterates

Facts about Coelenterates

Facts about Coelenterates 5: the digestion

There are two types of digestion conducted by Coelenterates. It can happen extracellular or even intracellular. The simple diffusion is conducted for excretion and respiration. The body has a network of nerves.

Facts about Coelenterates 6: the reproduction

Most species of Coelenterates perform budding for the asexual reproduction.  But there are several groups of Coelenterates which perform sexual reproduction.



Facts about Coelenterates 7: sea anemone

Sea anemone is included as a member of Coelenterates. It is a member in the order Actiniaria. Sea anemone has beautiful shape. There is no need to wonder that many people hunt this animal for decorating the aquarium.

Facts about Coelenterates 8: symbiotic relationships

Sea anemones have various symbiotic relationships with other organisms such as zoochlorellae and dinoflagellates. Find facts about cat fish here.

Coelenterates Pictures

Coelenterates Pictures

Facts about Coelenterates 9: jellies or jelly fish

Jelly fish is a member in a phylum Cnidaria. They capture the prey by using the stinging tentacles. You can find the jelly fish in various oceans in the world. The body shape reminds you with the shape of an umbrella.

Facts about Coelenterates 10: Corals

Another member in the phylum Cnidaria is coral. You can find various identical individual polyps living in colonies of corals. Spawning is considered as the common sexual reproduction of corals.  On the tentacles of corals, you can find the stinging cells which can be used to capture planktons and small fish. Get facts about Cephalopods here.

Coelenterates Pic

Coelenterates Pic

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