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Ctenophores lack stinging cells while Cnidarians possess stinging cells .
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∙ 11y ago
Ctenophores are gelatinous creatures with rows of cilia for movement and lack stinging cells, while cnidarians have stinging cells called cnidocytes. Ctenophores also have a simpler body structure compared to the more complex body plans of cnidarians, which include jellyfish, corals, and sea anemones.
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What kingdom do cnidarians belong?
Cnidarians belong to the Kingdom Animalia. They are characterized by their radial symmetry, tentacles with stinging cells called cnidocytes, and a simple nerve net.
What structure are the stinging cells of cnidarians located?
The stinging cells of cnidarians, called cnidocytes, are located on specialized structures called nematocysts. These nematocysts are found on the tentacles of cnidarians and are used for defense and capturing prey.
What are the harmful effects of Phylum Ctenophora?
Ctenophores are known for their ability to disrupt marine ecosystems by consuming large amounts of zooplankton, leading to imbalances in food webs. Additionally, some species of ctenophores have been introduced to new habitats through ballast water discharge, where they can outcompete native species and disrupt local ecosystems.
Cnidarians are members of the phylum?
Cnidarians are members of the phylum Cnidaria. They are a diverse group of animals that includes jellyfish, corals, and sea anemones. Cnidarians are characterized by their radial symmetry, specialized stinging cells called cnidocytes, and a basic body plan with a central mouth surrounded by tentacles.
What phylum is the siphonophore in?
The siphonophore belongs to the phylum Cnidaria.
Are cnidarians protostomes or deuterostomes?
Although most of the animal phyla are included in the deuterostomes and protostomes, cnidaria, porifera, placozoa and ctenophora are not included in the group of animals know as Bilateria (which contains the deuterostomes and protostomes). Cnidarians and ctenophores are in a group called Radiata, and Porifera and Placozoa are in the group known as Parazoa.
What does ctenophores eat?
ctenophores eat jelly worms
How does method by which cnidarians obtain food differ from method by which poriferans obtain food?
Poriferans needs organic substances and cnidarians needs of a gastrovascular cavity with openings.
What is one way that cnidarians and mollusks differ?
Mollusks are defined as Bivalves. They are called Bivalves because they have two shells. Cnidarians such as Jelly Fish do not have shells which define a bivalve (mollusks).
Where do you find Cnidarians?
ctenophora are often found around piers. A good place to look would be the nearby sailboat marina if on the coasts. Are only marine (seawater). Not found in lakes, rivers, etc. If you see jellyfish ctenophores may be nearby
What kind of symmetry do arthropoda crustacea have?
Phylum arthropoda is classified under a taxonomical unit (subregnum) Bilateria, which includes all phyla except the placozoans, cnidarians, ctenophores and sponges (porifera). Bilateria all have bilateral symmetry, or could be reflected in a hypothetical mirror placed down the midline, and includes the crustaceans.
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
Symmetry of cnidarians?
Cnidarians have a radial symmetry.
Are earthworms cnidarians?
Nope - Cnidarians are marine creatures !
