Phylum Ctenophora | Zoology Notes

Ctenophora and Cnidaria: Similarities and Dissimilarities | Zoology

In this article we will discuss about the similarities and dissimilarities between ctenophora and cnidaria. Similarities between Ctenophora and Cnidaria: 1. Biradial symmetry. 2. Simple organisation—lack of organ- systems. 3. Arrangement of different structures in oral-aboral axis. 4. Presence of branched coelenteron. 5. Presence of gelatinous mesoglea. 6. Net type nervous system. 7. Presence of statocyst (sense organ). Dissimilarities between [...]

By Shriya S|2017-01-11T14:47:35+00:00January 11, 2017|Phylum Ctenophora|Comments Off

Comparison between Ctenophora and Hydrozoa | Zoology

Learn about the comparison between ctenophora and hydrozoa. Comparison # Ctenophora: 1. A pair of opposite par radial tentacles. 2. Deep pouch at the base of the tentacles similar to tentacular sheath of Hormiphora 3. Eight radial canals formed by bifurcation of four interracial pouches of the stomach. 4. Subumbrellar cavity of catenaries comparable to the stomodaeum of Hormiphore. Comparison [...]

By Shriya S|2017-01-11T14:47:35+00:00January 11, 2017|Phylum Ctenophora|Comments Off

Ctenophora: Features and Classification | Zoology

In this article we will discuss about the features and classification of ctenophora. Salient Features of Ctenophora: 1. Body bi-radially symmetrical. 2. Presence of eight meridional rows of ciliary plates (comb plates). 3. Absence of cnidocytes. 4. Presence of adhesive cells (colloblasts) in the tentacles. 5. Mesenchymal muscle cells present in the mesoglea between the ecto- and endoderm layers. 6. [...]

By Shriya S|2017-01-11T14:47:35+00:00January 11, 2017|Phylum Ctenophora|Comments Off

Tag Archives | Phylum Ctenophora

Ctenophora and Cnidaria: Similarities and Dissimilarities | Zoology

Comparison between Ctenophora and Hydrozoa | Zoology

Ctenophora: Features and Classification | Zoology