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They use their tentacles to sting their prey.
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In addition to envenomating prey, cnidarians use their tentacles to bring their food towards their oral cavity and to provide defense against predators. Sessile cnidarians can also use their tentacles for locomotion, using sticky nematocysts for adhering to the substrate and then pulling themselves along a surface by retraction of those tentacles.
Certain box jellyfish species (notably, Carybdea sivickisi) use their tentacles during courtship behavior- the males use them to hold onto a mate, and the females use them to ingest the presented sperm package (spermatophore) into their cavities in proximity to their eggs.
Some small jellies also use their tentacles to hold onto eel grass for reasons that are yet to be fully understood, but probably are related to camouflage.
What else can I help you with?
How do cnidarian use their tentacles?
They use them to capture food.
What is the form of cnidarian that looks like a mushroom with tentacles?
Medusa
What are two body forms in the phylum cnidarian?
The two body forms in the phylum Cnidarian are the polyp and medusa. Polyps are usually stationary, with a cylindrical body and tentacles surrounding a central mouth. Medusas are free-swimming and have a bell-shaped body with tentacles hanging down.
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.
What is coral a arthropod or sponge or an echinoderm?
Coral is nor arthropod , sponge or echinoderm , A coral is a cnidarian also called a coelenterate because it possess cnidocytes , stinging cells , gastrovascular cavity ,tentacles which are cnidarian charters .
Is a free swimming form of a cnidarian called a polyp?
No, a free swimming form of a cnidarian is called a medusa. Polyps are typically attached to a substrate and have a cylindrical body with a mouth surrounded by tentacles at one end. Medusae have a bell-shaped body with tentacles hanging down.
What is the body structure of a cnidarian?
A medusa has a bowl shaped body with stinging cells on the tips of their tentacles. Their mouth is located on the bottom where their tentacles are, and their central cavity is in the middle of their body. A polyp's body is shaped like a vase with stinging cells at the end of their tentacles, and their central cavity in the middle of their body. Their mouth is on the top of their body with their tentacles.
What is an example of a cnardarian?
An example of a cnidarian is a jellyfish. Jellyfish belong to the phylum Cnidaria and are characterized by their gelatinous bodies and stinging tentacles used for capturing prey.
What is one function of the tentacles of an oyster?
Tentacles, along the edge of the oyster's mantle, are organs of sense.
What is the function of tentacles?
Tentacles are used for feeding, feeling, and grasping
What is the function of the arms and tentacles of a squid?
The tentacles serve as a mean to catch prey and suffocate it so do the arms
How do tentacles function on a hydra?
there is no function. asians use them for their tentacle porn though.
