All coelenterates are aquatic, mostly marine, animals. The body form 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.

2023年8月3日 · The Coelenterata may be defined as diploblastic metazoa with tissue grade of construction having nematocyst and a single gastrovascular cavity or the coelenteron. They are aquatic, mostly marine except few freshwater forms like the hydra. They are multicellular with tissue grade of organization. They are solitary or conical.

The Coelenterates are aquatic, mostly marine organisms. The body is radially symmetrical and exhibit a tissue-level organization. Their mouth is surrounded by sensory tentacles, which helps to capture their prey.

Coelenterates (Gr. koilos, hollow+enteron, gut) are the simplest of eumetazoans. This interesting group of animals take its name from the large cavity in the body that serves as the intestine. They include the hydra, jellyfish, sea anemones and corals .

Belonging to the animal kingdom, Coelenterata, or more commonly known as the Phylum Coelenterata are the simplest group of animals that fall under the category of invertebrates. They are usually found living at the bottom of the sea, often attached to rocks.

2022年11月29日 · The Coelenterates are amphibian, for the most part, marine living beings. The body is radially balanced and displays a tissue-level association. Their mouth is encircled by tactile appendages, which assist with catching their prey.

Cnidarians or coelenterates are multicellular, diploblastic animals with tissue grade of organization. A gelatinous layer called mesoglea or mesohyl persists between the ectoderm (epidermis) and endoderm (gastrodermis).

The coelenterates or cnidaria are distinguished from sponges in being “tissue animals” (Metazoa) that have distinct digestive cavity. The coelenterates differ from ctenophores in being primarily radial in symmetry, in possessing nematocysts, in having a polyp stage, and in reproducing both asexually and sexually.

Explain the Phylum Coelenterata General characteristics, Defence mechanism in coelenterates, Digestion in coelenterates, Skeleton of coelenterates, Examples of coelenterates and Classification of phylum Coelenterata at Aakash

Coelenterates are divided into three categories: Hydrozoa; Scyphozoa; Anthozoa; Hydrozoa. Hydrozoa is a Coelenterate from Class I. It gets its name from the Greek words hydro (water) and zoon (animal). Hydrozoa can be found in all three layers of the marine ecosystem.