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All cnidarians have on their tentacles stinging cells called nematocytes. They have no brains or a central nervous system. Another common feature is that they all can regenerate, letting them produce asexually (without the need for another partner) and to recover from injury.
Cnidarians are characterized by their radial symmetry, presence of stinging cells called cnidocytes, and a simple nerve net. They have a body composed of two cell layers and a central gastrovascular cavity with a single opening that serves as both a mouth and an anus. Cnidarians include jellyfish, corals, hydroids, and sea anemones.
A cnidarian is an animal with stinging bristles, like a jellyfish,a portoguese manowar, and coral .
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Are cnidarians arthropods?
Cnidarians and Sponges are invertebrates
What are the main characteristics of sponges cnidarians and worms?
Sponges are invertebrate animals that usually have no body symmetry and never have tissues or organs. Cnidarians use stinging cells to capture food and defend themselves. Flatworms are flat and as soft as jelly. Unlike cnidarians or flatworms, roundworms have a digestive system that is like a tube, open at both ends. Earthworms and other segmented worms have bodies made up of many linked sections called segments.
Are Cnidarians protists?
No, cnidarians are not protists. Cnidarians are a diverse group of animals that include jellyfish, corals, and sea anemones. Protists are a separate group of eukaryotic organisms that are not classified as animals.
Which system is more advanced in cnidarians than in porifera?
The nervous system. Cnidarians have a neural net, but porifera do not.
Are cnidarians warm-blooded?
No, cnidarians are cold-blooded animals. They are not capable of regulating their body temperature internally like warm-blooded animals. Their body temperature depends on their environment.
Which characteristics do scienctists use to classify cnidarians?
from other animals they get it
What are some characteristics of cnidarians?
soft bodies and stinging cells
What are some special characteristics for cnidarians?
Jellyfish, corals, and box jellies
What characteristics gives cnidarians their name?
The characteristic that gives cnidarians their name is: cnidarian means "nettle" and nettles are plants that release stinging barbs into the skin. All cnidarians have stinging cell's. Cnidarians have complex tissues, a gut for digesting food, and a nervous system.
What are three characteristics that all cnidarians have in common?
All cnidarians live in water, have tentacles with specialized stinging cells called nematocysts, and have an internal sac for digestion which is called the gastrovascular cavity.
What are 3 characteristics of cnidaria?
3 characteristics of cnidarians are having tentacles, cnidocytes, and digestion. Cnidara have poisonous stinging cells and soft bodies. Stinging cells can be found in the tentacles of a jellyfish.
What are two types of cnidarians that are formed by colonies?
small cnidarians and big cnidarians
Do cnidarians have nerves?
cnidarians have no nervous system
Is a cnidarians invertebrates?
Yes, cnidarians are invertebrates.
What is the family for cnidarians?
The cnidarians are in the Kindom family
What is a Cnidarians such as a box jellyfish?
cnidaria(similar to cnidarians)
Are earthworms cnidarians?
Nope - Cnidarians are marine creatures !
