WebQuestion: Radial symmetry Bilateral symmetry. Starfish – phylum Echinodermata (above left) – and sea anemones – phylum Cnidaria (above right) – differ from most animals in having radial symmetry, a type of body design in which there is no right or left side (like a flowerpot). A line drawn through the middle of the body from any ... WebMay 25, 2013 · Cnidarian Radial symmetry No body cavity other than gastrovascular cavity diploblastic - 2 primary layers ( endoderm and ectoderm ) Unique stinging cells One opening to digestive track...
Basic Characteristics of Cnidaria Sciencing
WebPhylum Cnidaria (Coelenterata) has about 9,000 living species in four classes: Anthozoa; Cubozoa; Hydrozoa; and Scyphozoa. Cnidarian - Evolution and classification … WebFeb 28, 2024 · Phylum Cnidaria includes animals that show radial or biradial symmetry and are diploblastic, that is, they develop from two embryonic layers. Nearly all (about 99 percent) cnidarians are marine species. Cnidarians contain specialized cells known as cnidocytes (“stinging cells”) containing organelles called nematocysts (stingers). dave\u0027s rv life
ADW: Cnidaria: INFORMATION - Animal Diversity Web
Web: any of a phylum (Cnidaria) of radially symmetrical, aquatic, invertebrate animals that have a hollow digestive cavity opening to the outside by a single opening surrounded by one or more nematocyst -studded whorls of tentacles, that occur as single or colonial sessile, typically columnar polyps or usually free-swimming, bell-shaped medusae, and … WebWhich of these, if true, would support the claim that the ancestral cnidarians had bilateral symmetry? 1. Cnidarian larvae possess anterior-posterior, left-right, and dorsal-ventral aspects. 2. Cnidarians have fewer Hox genes than bilaterians. 3. All extant cnidarians, including Nematostella, are diploblastic. WebSep 23, 2024 · Cnidarians The phylum Cnidaria includes animals that show radial or biradial symmetry and are diploblastic. Nearly all (about 99 percent) cnidarians are marine species. Cnidarians have specialized cells known as cnidocytes (“stinging cells”) containing organelles called nematocysts. bayar perpanjangan sim