Archive | Invertebrate Zoology

Protozoa: Habitat, Architecture and Organelles

In this article we will discuss about Protozoa:- 1. Habitat of Protozoa 2. Architecture of Protozoa 3. Organelles. Habitat of Protozoa: Adaptation of Protozoa is ex­tended to all environments open to micro­organism. Free-living forms occur in fresh water lakes, ponds, open ocean, river and even in temporary pools. Soil and sands also form natural environment for many Protozoa. Such Protozoa [...]

By |2016-05-27T11:36:04+00:00May 27, 2016|Protozoa|Comments Off on Protozoa: Habitat, Architecture and Organelles

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

Skeletal Elements Found in Sponges | Phylum Porifera

The following points highlight the two main skeletal elements found in sponges. The types are: 1. Spongin 2. Spicules. Skeletal Element: Type # 1. Spongin: The spongin comprises of fi­bres of spongin and they resemble silk in appearance. These are proteinaceous secre­tion of the spongioblasts and form a net­work. In most cases, the spongin fibres are composed of protein, termed [...]

By |2016-05-27T11:35:53+00:00May 27, 2016|Sponges|Comments Off on Skeletal Elements Found in Sponges | Phylum Porifera
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