What is habitat of coelenterates?

They are aquatic animals and are mostly found in marine environments, attached to the rocks at the bottom of the ocean. A few species are also found in freshwater habitats. Coelenterates can be found solitarily or in colonies. You can find them sedentary or free swimming.

1. What is the habitat of Hydra?
2. What are the main features of Coelenterata?
3. Which of the coelenterates is found?
4. Which type of body wall is present in coelenterates?
5. What is Hydra explain?
6. What is found in Hydra?
7. What is the meaning of Coelenterata?
8. What type of digestion is Coelenterates?
9. What are two different forms of the body in Coelenterate animals?
10. What are tentacles in Coelenterates?
11. How do Coelenterates and platyhelminthes differ from each other?
12. Is Coelenterata and Cnidaria same?
13. What is Coelenterata called Cnidaria?
14. Which of the following organisms belong to Coelenterata?

What is the habitat of Hydra?

Hydras occur in freshwater, either in flowing or standing waters. They tolerate a wide range of conditions from depths up to 350 metres in lakes, or in shallow, fast-flowing streams. They attach themselves to solid surfaces such as stones, twigs, or vegetation. They do not occur on soft surfaces.

What are the main features of Coelenterata?

Characteristics. All coelenterates are aquatic, mostly marine. The bodyform is radially symmetrical, diploblastic and does not have a coelom. The body has a single opening, the hypostome, surrounded by sensory tentacles equipped with either nematocysts or colloblasts to capture mostly planktonic prey.

Which of the coelenterates is found?

Body organisation of organisms belonging to the Coelenterates are multicellular with tissue grade. They have an inner layer of endoderm called the gastrodermis, and outer ectoderm called the epidermis. Their body wall is diploblastic. Coelenterates are acoelomate animals.

Which type of body wall is present in coelenterates?

Body wall of coelenterates is diploblastic. It is made of inner endoderm and outer ectoderm. Two layers are divided by mesogloea.

What is Hydra explain?

1 : a many-headed serpent or monster in Greek mythology that was slain by Hercules and each head of which when cut off was replaced by two others. 2 not capitalized : a multifarious evil not to be overcome by a single effort.

What is found in Hydra?

Answer: Hydra are simple invertebrates, with two layers of body cells. They live in fresh water. Their body is radially symmetric. They have a central cavity through which they take in food and expel waste. ...

What is the meaning of 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.

What type of digestion is Coelenterates?

Coelenterates possess a simple gastric cavity, where they digest their food.

What are two different forms of the body in Coelenterate animals?

The coelenterates characteristically have two basically similar types of individuals differing in structural details, called the polyp and the medusa. The polyp is sessile.

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.

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.

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.

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.

Which of the following organisms belong to Coelenterata?

The correct answer is option 3 i.e. Hydra and sea anemone.