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Why are stinging cells effective for jellyfish and sea anemones to capture prey?
Wiki User
∙ 15y ago
As in most animals, Jellyfish have stingers as a forn of self defense. If an Animal attempts to attack it, it will get a nasty sting, sometimes, even a deadly one.
Due to this feature, jellyfish survive better than if they didn't have stingers. This said, some species of Jellyfish don't have stingers and are harmless.
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoStinging cells are called nematocysts. Anything that helps a predator to catch and kill prey is going to be effective. Nematocysts respond to touch, and act like tiny bow-and-arrow traps. Whenever the prey is touched by a tentacle, the nematocyst fires its stinging dart, and poison is shot into the prey. The prey gets more and more tangled up in tentacles, and eventually has so much poison that it dies. Then the jelly or anemone pulls it in and chows down!
Anonymous
Jellyfish has a special feature , i.e they have cnidoblasts,which bear tenatacles around their mouth. But , its not like only the jellyfishes have this special feature but all the Cnidarians have this feature.
well, cnidarians consists of animals which live underwater. In simple words, its just a classification done to make study simpler in animal kingdom. So, jellyfish have this stingers, a.k.a tentacles for capturing their prey. And how do they do this? its the cnidoblasts which help in capturing, by injecting toxin in the body of their prey.
so, thats the reason why jellyfish have stingers.
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What are sea anemones stinging cells used for?
Cnidarians (Phylum Cnidaria; stinging animals, including sea anemones) use their stinging cells (properly called cnidocytes, Latin for "stinging chamber") in order to capture prey. The cnidocytes are basically a cellular-sized harpoon. When prey bumps into the cnidocyte, a trigger mechanism is activated and the harpoon rushes out. Some species add poisons for good measure. The tentacles are then able to draw food to the mouth, where it is digested and the waste expelled through the mouth (yes, they use their mouth as an anus).
What is an example of cnidarians?
Cnidarians are the group of invertebrate animals which possess stinging cells called cnidocytes. The popularly-known cnidarians fall into only a couple of major groups. The Anthozoans or corals, sea pens, and anemones are sessile--that is stationary in lifestyle. The Scyphozoa or jellyfish are motile (mobile in lifestyle). So, the answer to the question is that anemones, coral, and jellyfish are all cnidarians.
How do coral polyps protect themselves?
Some contain stinging cells called nematocysts. Some types are also able to extrude their stomach and digest their neighbors if they are competitive for space. The polyps are also able to retract into the hard skeletal matrix.
What two functions do nematocysts perform?
Nematocysts are the stinging cells on tentacles of a cnidarian, like a jellyfish. Since jellyfish don't have any teeth, and their body consists of gelatin, it's hard to capture prey. Nematocysts help jellyfish with feeding by stinging the prey in an attempt at trying to immobilizing the prey.
How does cirripedia capture food?
Cnidarians are carnivorous, feeding mostly on zooplankton but also on small crustaceans, fish eggs, worms, smaller cnidarians, and even small fish.For the source and more detailed information concerning this subject, click on the related links section (Answers.com) indicated below.
The examples of cnidarian?
Examples of cnidarians include jellyfish, corals, sea anemones, and hydroids. Cnidarians are characterized by their radial symmetry and specialized stinging cells called cnidocytes that they use to capture prey.
What type of animal uses toxins on nematocysts to capture prey?
jellyfish and mosquitoes are two creatures that have nematocust a stinging cell used by animals hunting and stunning their prey
Stinging cells are a characteristic of members of this phylum.?
cnidaria
What does a nemertea worm eat?
actually nematocysts are stinging cells/ srtuctures of organisms of the Phylum Cnidaria such as corals, jellyfish, sea anemones to name a few. it's used to capture prey and repel predators. but species of this Phylum are mostly carnivorous.
What is nematocysts?
Nematocysts are the miniscule capsules that a jellyfish's tentacles contain. They are the tiny needles that jellies use to capture and paralyze prey.
Is a jellyfish is a vertebrate?
No, jellyfish are invertebrates. They have no spine/backbone.no, jellyfish is a not a vertebrate but instead it's an invertebrate which belongs to the phylum coelenterates...they don't have backbone..Coelenterates (cnidarians) are animals that have tentacles surrounding their mouth. The tentacles contain stinging cells that make it easy to capture their next meal, and contain poison to kill their prey. Some of the animals that are cnidarians are octopus, corals, hydra, sea fans, and sea anemones. ^^no a jelly fish is an invertebrateNo jellyfish are not vertebrates, there are invertebrates.
Which phylum does the coral belong?
The Phylum Cnidaria includes bluebottle jellyfish, anemones, corals and other jellyfish (except comb jellies). There are several Classes: Hydrozoa (Anemones, Corals), Scyphozoa (Jellyfish) and Cubozoa (box jellies). Cnidarians have two distinct body forms: polyps and medusae. Polyps have a tubular body attached to the substrate, or to each other in a colony (e.g. coral). Medusae are free swimming (e.g. adult jellyfish). The most important feature of Cnidarians is their stinging cells (nematocysts). These are in the tentacles and the body wall. Each stinging cell contains a coiled thread that, when pressure is applied, is ejected from the cell. These stinging cells can be used for defense or to capture prey. Some stinging cell threads have barbed ends and are connected to poison sacs, making them particularly nasty! hope that helps
Food adaptations for the moon jellyfish?
The moon jellyfish has a feeding tentacle that hangs at each corner of its mouth. The tentacle has stinging cells that are used to capture small prey and drag it to its mouth.
Why does a jellyfish have stinging tentacles hanging beneath its body?
there are two reasons for this. 1. to capture and stun food 2. to scare away predators
What are sea anemones stinging cells used for?
Cnidarians (Phylum Cnidaria; stinging animals, including sea anemones) use their stinging cells (properly called cnidocytes, Latin for "stinging chamber") in order to capture prey. The cnidocytes are basically a cellular-sized harpoon. When prey bumps into the cnidocyte, a trigger mechanism is activated and the harpoon rushes out. Some species add poisons for good measure. The tentacles are then able to draw food to the mouth, where it is digested and the waste expelled through the mouth (yes, they use their mouth as an anus).
How does sea anemone trap it prey?
by sooting down its prey with a type of poison.
What is an example of cnidarians?
Cnidarians are the group of invertebrate animals which possess stinging cells called cnidocytes. The popularly-known cnidarians fall into only a couple of major groups. The Anthozoans or corals, sea pens, and anemones are sessile--that is stationary in lifestyle. The Scyphozoa or jellyfish are motile (mobile in lifestyle). So, the answer to the question is that anemones, coral, and jellyfish are all cnidarians.
