Blog
Articles, tutorials, and notes-to-self.
Internal structure of Cycas: Primary root structure: In a T.S. of young root. The following structures are seen. The outermost layer is epidermis or epiblema.…
External features of Cycas: Cycas plant is a well developed tree. It grows in xeric habitat and is a slow growing plant reaching a height…
General characters of Gymnosperm: The plants are well developed, woody trees having true root, stem and leaves. Herbaceous or annuals habit is not found in…
General characters of Urochordata: Characters Habitat = Generally sedentary. Test of tunicine= Present Coelom= Absent in adult Notochord and nerve cord= Absent Metamerism= Absent in…
Reproductive system of Herdmania: Herdmania is bisexual or hermaphrodite. Self fertilization does not occur due to protogynous condition. (A) GONADS There is present a pair…
Slides of phylum Anelida: T.S. Pheretima (Earthworm) - Pharyngeal region (a) Body wall is formed of outer cuticle, single layered epidermis, outer layers of circular…
Digestive system of Herdmania: The digestive system of herdmania is divided into two parts- (1) Alimentary canal (2) Digestive gland (1) Alimentari canal:The alimentary canal…
What is Herdmania? SYSTEMATIC POSITION Phylum: Chordata Class: Ascidicea Order: Pleurogona Genus: Herdmania Introduction of Herdmania: Herdmania is a simple ascidian. It is popularly called…
General characters of phylum Annelida: Habitat. These are mostly aquatic and are either fresh-water (e.g. Hirudinaria) or marine (eg. polychaetes like Nereis, Aphrodite). Some are…
What is Pteridophytes? A pteridophyte is a vascular plant that disperses spores. Because pteridophytes produce neither flowers nor seeds, they are sometimes referred to as…