Where did cnidarians come from?

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Quinn Tholberg
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What is a Cnidarian?

cnidarians, such as jelly fish, sea anemones, hydra, and corals, have tentacles surrounding their mouth. they are a hollow-bodied animal with two celled layers that are organized into tissues. the inner layer forms a digestive cavity where food is broken down. A jelly fish. Cnidarian's have a sting ( Full Answer )

What are cnidarians?

A cnidarian is an animal with stinging bristles, like a jellyfish,a portoguese manowar, and coral .

What do cnidarians eat?

Cindarians usually eat fish that they stun with their tentacles.. "Farming their Food: Almost all cnidarians are carnivorous. Many eat small creatures or trap detritus, plankton and other microscopic titbits. But many also capture and eat large prey. Many cnidarians, however, more supplement their ( Full Answer )

What is a Cnidarians diet?

cnidarians- some feed by predation. they eat small fish things like that. they also filter nutrients from the water into there body. they can also absorb organic chemicals from the water.

Why are jellyfish cnidarians?

Yes they are! I had the same doubt but I researched and the answer is yes! I LOVE JUSTIN BIEBER! HE IS THE BESTT! I MET HIS VICE PRINCIPAL 2 MONTHS AGO AND I STILL CANT BELIEVE IT!!!

Where do Cnidarians live?

All live under water; most live in the oceans and seas, and a few live in freshwater. But they mostly live in saltwater or oceans. Their examples are Jellyfish, Corals and Sea Anemones

What is the oldest cnidarian?

If you mean the longest-lived, gold corals and black corals can be2000 to 4000 years old.

How do cnidarians move?

Cnidarians are divided in 3 main groups: the antozoan, syphozoans and cubozoan. The anthozoans are sea anemones and coral and cubazona are jellyfish. Most do not move around, but if necessary they move to get away from predators; the ocean current carries them. But, cubazonas, such as jellyfish, pro ( Full Answer )

How do cnidarians breathe?

They don't really breathe, they use diffusion to get the nutrients they need through their body walls. They use diffusion for respiration, excretion, and circulation.

Characteristics of cnidarians?

The characteristics of cnidarians are that they have claws, hard exoskeleton, and reproduce sexually. ------- That answer is just silly. The phylum, cnidaria, includes hydras, jellyfish, sea anemones, and corals. Cnidarians are defined by the fact that they possess cnidocytes (cells that can ( Full Answer )

How do Cnidarians get their food?

Mainly through suspension feeding. Cnidarians use stinging tentacles (nomocytes) to capture their prey. Once the tentacles grab the food it is absorbed in the gastrovascular cavity (stomach) and taken in as nutrients.

What is a cnidarians?

the phylum cnidaria consists of about 10,000 species which are mostly marine. the jellyfish and sea anemone belong to this phylum. there bodies are radially symectrical. they capture there prey by stining them with tentacles, there tentacles have special cells that contains a toxin. the only have on ( Full Answer )

How do cnidarians get food?

A Cnidarians body consists of a gastrovascular cavity with an opening where they ingest food and where waste is released.

What is an example of cnidarians?

Cnidarians, also known as coelenterates, are an extremely varied group of animals. Examples include sea anemones, hydras, jellyfish, corals, and the Portuguese Man of War.

What is cnidarians?

This is straight from www.thefreedictionary.com, so I get no credit at all:. "Any of various invertebrate animals of the phylum Cnidaria, characterized by a radially symmetrical body with a saclike internal cavity, and including the jellyfishes, hydras, sea anemones, and corals. Also called coelen ( Full Answer )

What are facts about cnidarians?

cnidarains are animals Actually, they are a type of phylum, which is an invertebrate. Facts- They produce sexually and asexually. Their body is shaped as a vase- Polyp or upside down bowl- Medusa they don't have a brains. they do not have brains there are two body forms- polyp- cant move, ( Full Answer )

Is a stingray a Cnidarian?

not really it dependes on how you look at it. a stingray does have barbs but no tentacles...so it could go either way.

How do cnidarians survive?

They survive like any other animal: They take in food, digest it, and get rid of waste. Simple as that

Is a crab a cnidarian?

No. Cniderians are soft bodied, simple creatures like jellyfish, anemones and corals. Crabs are arthropods.

How do cnidarians feed?

Cnidarians first paralyze their prey with stinging cells on theirtentacles then they slowly move the food up into the bell to digest. They have no distinct mouth or anus so the food goes in and outaround the same place.

What is cnidarians diet?

Cnidarians are jellyfish, sea anemones, sea pens, hydras (cnidarian="nettle" in latin, so they have stinging cells). They eat aquatic animals, from protozoa to fish.

What does cnidarians mean?

Cnidiarian is the word for the phylum of jellyfish and sea anemomes. Some of the requirements to make it into the Cnidaria Phylum are possessing radial symmetry, having no nervous system or head but having a nerve net, and possessing nematocysts (which are stinging cells unique to cnidarians). Nemat ( Full Answer )

Why are cnidarians endangered?

They're not, that I know of. They may be losing some of their habitat in some areas, but jellyfish, anenomes, coral and other of the invertebrates are thriving in other areas. The ones that i know are endangered are corals. They are being lost through bleaching, and dredging.

How do cnidarians see?

Medusae and complex swimming colonies can sense tilt and acceleration by means of chambers lined with hairs which detect the movements of internal mineral grains. If the body tilts in the wrong direction, the animal rights itself by increasing the strength of the swimming movements on the side that ( Full Answer )

How does a cnidarian feed?

cnidarians first paralize their prey with stinging cells on their tenticles then they slowly move the food up into the bell to digest . They have no destinct mouth or anus so the food goes in and out around the same place .

How are cnidarians helpful?

They are not helpful they are f**king jellyfish that sting, and they are the reason i have one testicle.

What is cnidarians excretion?

The excretion process in Cnidarians is accomplished through diffusion. The waste flows out of the gastrovascular cavity after the nutrients go directly to the body.

Are cnidarians protostomes?

No, cnidarians are not protostomes or deuterostomes. They fall under (the unranked taxonomic level) Radiata, while both superphylum Deuterostomia and Protostomia are under the (unranked taxonomic level) Bilateria. Features of Bilateria include bilateral symmetry (at some point) and three distinctiv ( Full Answer )

What are cnidarians characteristics?

There are two types (or body plans) of cnidarians. There is the Medusa, which is a Jellyfish, really. And there is a Polyp, which is like an upside-down Jellyfish, if you want it simply. A polyp would be your sea anemone or coral. They spend most of their lives attached to a hard surface underwater. ( Full Answer )

What is the mesoglea of a cnidarian?

It's the jelly-like substance that is found between the two layers of cells in a cnidarian. The mesogea is not in all cnidarians though

Do Cnidarians have brains?

no --- Well, some do have complex circular ganglia. The cubozoans (boxjellies) also have the ability to sense their environment and reactto it, and possibly even use their complex eyes to persue prey andavoid obstacles. Whether their nervous system is complex enough tofunction at the level of a si ( Full Answer )

Do cnidarians have sight?

Cnidarians do no possess eyes for sight, though many of them are able to sense light vs dark.

What are the kinds of Cnidarians?

The cnidarian groups are broken down first into two large groups; one contains the jellyfish (Medusozoa), and the other contains the corals and anemones (Anthozoa). Within the Medusozoa, there are four basic groups; Cubozoa(box jellies), Hydrozoa(Hyras), Scyphozoa(regular jellyfish) and Staurozoa(s ( Full Answer )

What is a cnidarians prey?

Cnidarians (corals, jellyfish and anemones) eat a variety of animal prey, mostly zooplankton. Zooplankton can consist of small crustaceans, larval animals, and fish.

What do the bodies of Cnidarians have?

They are polyps or medusas and have radial symmetry. They have a mouth/anus, tentacle, gastrovascular cavity, gastodermis, mesoglea, epidermis, and in polyps, a body/stalk.

Do cnidarians have spicules?

Cnidarians do not have spicules. Spicules are commonly found insponges and it is a simply a skeleton which has very tiny splintersthat look like needles.

Can cnidarians breathe?

they have a mouth just like us, that is what helps them to breathe, but they cant breathe if they are out of water unless they are land animals, which most of them probably arent/

Facts about cnidarians?

Four classes make up the phylum Cnidaria : . Anthozoa, which includes sea anemones and coral . Cubozoa, which includes Portuguese man-of-war . Hydrozoa, which includes jellyfish . Scyphozoa, which includes box jellies There are about 9,000 species of cnidarians. Cnidarians live in aquatic env ( Full Answer )

How do cnidarians get energy?

Like all animals; thru their food. They are filter feeders, if that helps. The water carries the little bits of food in their body along with the oxygen they need.

Do cnidarians have blood?

I am pretty sure they do not have blood. They are very simple life forms.

Is a cuttlefish a Cnidarian?

No. Rather, it belongs under Phylum Mollusca, and class Cephalopoda. A Cnidarian has nematodes and cnidocytes, which a cuttlefish does not have.

How did the cnidarians get their name?

The origin of the name cnidarians is from the New Latin: cnida, meaning nematocyst and Greek for knide: meaning, nettle.

What is the domain of cnidarians?

All cnidarians belong to the taxonomic domain of Eukarya ,which are characterised by having cells with nuclei. Eukarya coversall organisms in the Kingdom Animalia, as well as the KingdomsPlantae, Fungi and Protista.

How are cnidarians beneficial?

Cnidarians include corals. Corals provide hiding places for themajority of ocean life - reefs are the most diverse areas in theworld, the ocean's rainforests, if you will. None of it would bepossible without cnidarians!

How do you describe a cnidarian?

An animal that exists in a mudusa or poylp state. ----------- A cnidarian is defined by the root of its name, cnida, which is Greek for stinging nettle. All cnidarians, therefore, have cnidocytes, which are the stinging, adhering, or entangling cells that allow them to eat, defend, or move. It ( Full Answer )

Do cnidarians have a mantle?

Yes but not all. Because a mantle is a hard substance that cells secret. Example: clams Hydra ,a type of cnidarian, does not have this. :)

What are cnidarians'?

cnidarians are type of invertebrate animals . They are characterized by presence of stinging cells

Is a spider a cnidarian?

No , a .spider is not a cnidarian . A spider is an Arachnid . Hydra and jelly fishes are cnidarians .

Are cnidarian segmented?

No , cnidarians are not segmented animals . They are the simplest diploblastic animals . Annelids are segmented animals .