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 [...]
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 [...]
The following points highlight the three main types of canal system encountered in sponges. The types are: 1. Ascon Type 2. Sycon Type 3. Leucon Type and 4. Rhagon Type. 1. Asconoid Type: The asconoid type of canal system is regarded to be the most simple and primitive grade of canal system. Asconoid type is present in these sponges whose [...]