Tag Archives | Sponges

Sponge: Spicules and Gemmule | Zoology

In this article we will discuss about the spicules and gemmule of sponge. Spicules of Sponge: 1. The spicules are structures which form the supporting skeleton in sponges. 2. They may be either calcareous or silicious in nature. 3. They may be either monaxon (having one ray) triaxon (having 3 rays) or tetraxon (having 4 rays). 4. Some times they [...]

By |2016-10-13T19:19:13+00:00October 13, 2016|Zoology|Comments Off on Sponge: Spicules and Gemmule | Zoology

Role and Significance of Canal System in Sponges

In this article we will discuss about the role and evolutionary significance of canal system in sponges. Role of Canal System: The canal system which draws water curĀ­rent inside the sponge's body and maintains a continuous uninterrupted flow of water, plays a vital role in the physiology of sponges, because it serves the various kinds of funcĀ­tions. (i) Nutrition: The [...]

By |2016-05-27T11:35:53+00:00May 27, 2016|Sponges|Comments Off on Role and Significance of Canal System in Sponges

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
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