Coelenterata

Another name for coelenterata?

Another name for coelenterata?

cnidarian, also called coelenterate, any member of the phylum Cnidaria (Coelenterata), a group made up of more than 9,000 living species. Mostly marine animals, the cnidarians include the corals, hydras, jellyfish, Portuguese men-of-war, sea anemones, sea pens, sea whips, and sea fans.

  1. What is Coelenterata called Cnidaria?
  2. What do you mean by Coelenterata?
  3. Which one of the following belongs to phylum Coelenterata?
  4. What are Coelenterates mention some examples?
  5. Is Coelenterata and Cnidaria same?
  6. Why are cnidarians so called?
  7. What is Coelenterata pronunciation?
  8. What is the meaning of Nemathelminthes?
  9. What is polyp and medusa?
  10. Which of the following does not belong to Coelenterata?
  11. Which of the following is not a Coelenterata?
  12. How do coelenterates and platyhelminthes differ from each other?
  13. What are tentacles in coelenterates?
  14. Why is hydra an Coelenterata?

What is Coelenterata called Cnidaria?

Phylum Coelenterata is also known as Cnidaria due to the presence of cnidoblasts or cnidocytes on the tentacles and body surface. They contain stinging capsules called nematocysts.

What do you mean by Coelenterata?

coelenterate. / (sɪˈlɛntəˌreɪt, -rɪt) / noun. any invertebrate of the phylum Cnidaria (formerly Coelenterata), having a saclike body with a single opening (mouth), which occurs in polyp and medusa forms. Coelenterates include the hydra, jellyfishes, sea anemones, and corals.

Which one of the following belongs to phylum Coelenterata?

Sea anemones belong to phylum coelenterata.

What are Coelenterates mention some examples?

The Phylum Coelenterata consists of marine organisms that have a body that is radially symmetrical and a mouth that has sensory tentacles that help in capturing prey easily. Other animals belonging to the Phylum Coelenterata are hydra, comb jellies, true jellies, sea pens, coral animals, sea anemones and more.

Is Coelenterata and Cnidaria same?

cnidarian, also called coelenterate, any member of the phylum Cnidaria (Coelenterata), a group made up of more than 9,000 living species. Mostly marine animals, the cnidarians include the corals, hydras, jellyfish, Portuguese men-of-war, sea anemones, sea pens, sea whips, and sea fans.

Why are cnidarians so called?

Coelenterates show the presence of specialised cells called cnidoblasts, which bear stinging structures called nematocysts. These help in capturing the prey by paralysing them with the injected toxin. Due to the presence of cnidoblasts, they are also called cnidarians.

What is Coelenterata pronunciation?

Coe-len-ter-ata.

What is the meaning of Nemathelminthes?

: a phylum including the nematodes and horsehair worms and sometimes the acanthocephalans, rotifers, gastrotrichs, and minute marine organisms of a related class (Kinorhyncha) which are all more or less wormlike animals with a cylindrical unsegmented body covered by an ectoderm without cilia that secretes an external ...

What is polyp and medusa?

There are two basic cnidarian body shapes: a polyp form, which is attached to a surface; and an upside-down free-floating form called a medusa. Some cnidarians change form at different phases of their life cycle, while others remain in one form for their entire life.

Which of the following does not belong to Coelenterata?

Sea cucumber is an echinoderm from the class Holothuroidea as it has a spiny skin. They are marine animals and have an elongated body with branched gonad. Whereas sea pen or sea feather and sea fan are the Coelenterates. Thus, the correct answer is option C.

Which of the following is not a Coelenterata?

Correct Option: C. Explanation: Sea cucumber / lily falls under the phylum echinodermata. Sea fan, sea feather and sea pen are organisms that fall under the phylum coelenterate.

How do coelenterates and platyhelminthes differ from each other?

Coelenterates vs Platyhelminthes

Phylum Platyhelminthes are mostly parasitic, and they are triploblastic animals where the ectoderm is very specialized with a prominent epidermis. Coelenterates show tissue level organization. Platyhelminthes show organ level organization.

What are tentacles in coelenterates?

Tentacles have special structures known as the nematocysts which help in capturing and paralyzing prey. Coelenterates simply wave their tentacles and when a prey comes in contact, the nematocysts inject the toxin that paralyses or kills the prey. Nematocysts are the most distinguishing feature of this phylum.

Why is hydra an Coelenterata?

Hydras belong to the phylum Coelenterata (also called Cnidaria), which includes corals, sea anemones, and jellyfish. ... Hydras are also atypical because they do not have a medusa (jellyfish) stage as part of their life cycle as do most other coelenterates.

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