Tag Archives | Phylum Porifera

3 Main Classes of Phylum Porifera

The following points highlight the three main classes of Phylum Porifera. The three classes are: 1. Calcarea or Calcispongiae— (Calcareous Sponges) 2. Hexactinellida or Triaxonida or Hyalospongiae—(Glass Sponge) 3. Demospongiae. Phylum Porifera: Class # 1. Calcarea or Calcispongiae— (Calcareous Sponges): [Calcarea, L. Calcarious = limy, Calcispongiae, L. Calcis = genitive of calx = lime or chalk] Features: (i) Exclusively marine, [...]

By |2016-05-27T11:35:53+00:00May 27, 2016|Phylum Porifera|Comments Off on 3 Main Classes of Phylum Porifera

Sponges: Definition, Features and Habitat | Phylum Porifera

In this article we will discuss about Sponges:- 1. Taxonomic Retrospect of Sponges 2. Definition and Origin of Sponges 3. General Features 4. Habitat 5. Structural Peculiarities 6. Development 7. Affinities 8. Regeneration 9. Phylogeny. Contents: Taxonomic Retrospect of Sponges Definition and Origin of Sponges General Features of Sponges Habitat of Sponges Structural Peculiarities of Sponges Development of Sponges Affinities [...]

By |2016-05-27T11:35:53+00:00May 27, 2016|Sponges|Comments Off on Sponges: Definition, Features and Habitat | Phylum Porifera

An Example of Phylum Porifera: Sycon

In this article we will discuss about Sycon:- 1. Habit and Habitat of Sycon 2. Structure of Sycon 3. Canal System 4. Physiology of Water Current Production 5. Microscopic Organisation 6. Nutrition, Respiration and Excretion 7. Reproduction 8. Development. Contents: Habit and Habitat of Sycon Structure of Sycon Canal System of Sycon Physiology of Water Current Production in Sycon Microscopic [...]

By |2016-05-27T11:35:53+00:00May 27, 2016|Phylum Porifera|Comments Off on An Example of Phylum Porifera: Sycon
Go to Top