Phylum Aschelminthes or Nemathelminthes (Greek; nema = thread; helmins = worm) The Roundworms In phylum Aschelminthes, the organisms are also called roundworms because the body is circular in cross-section. These organisms are endoparasites. They are cylindrical, unsegmented, and triploblastic animals. The roundworms are mostly parasitic and cause diseases in plants, Read more…
Phylum – Porifera – (Pore-bearing) Introduction: The porifers are commonly known as sponges. Porifers consisting the most primitive multicellular animals. These are pore-bearing animals, the body does not consist of organs and they can regenerate their lost parts. The phylum includes around 5ooo species. These are the first multicellular animals. Read more…
Animal kingdom – Classification The kingdom is the second-highest taxonomic rank below the domain. Under the kingdom Animalia, the multicellular, eukaryotic organisms with few exceptions are placed. Basis of Classification of Animal Kingdom Some common features are used as the basis of the classification of animals. These are common to Read more…
Angiosperms (Angios- vessel, sperma- seeds) Features of Angiosperms Angiosperms are flowering plants, in which the flower is developed by ovule and pollen grain. Seeds are found always enclosed in fruits in angiosperms. These are the most familiar plant-like mango, peas, coconut, wheat, and rice. The angiosperms diversified extensively during the Read more…
Gymnosperms Gymnosperms: The gymnosperms are spermatophytes i.e. seed-producing plants. The Gymnosperms (Gymno: naked, Sperma-seed) are the form of a plant in which the ovules are not enclosed by the ovary wall. In these plants, the ovule remains uncovered i.e. naked before and after fertilization. After fertilization, developed seeds are also Read more…
Pteridophytes (Greek word- Pteron– feather, phyton– plant) Pteridophytes are the first terrestrial plants (the most primitive cryptogamic land plants) that possess vascular tissue the Xylem and Phloem. The most common pteridophytes are horsetails and ferns and lower vascular plants. They are commonly called vascular cryptogams, snakes of plant kingdom or botanical Read more…
The Bryophytes Bryophytes are also called Amphibians of the plant kingdom. They include mosses and liverworts which grow commonly in the moist shaded area in the hills. They show haplo-diplontic life cycle. These are called Amphibians of the plant kingdom because they can live on soil but for sexual reproduction, Read more…
Plant Kingdom-The Algae Introduction of Plant Kingdom Plant and animal kingdoms both include a wide variety of organisms that contribute to biodiversity. we can define Plants as Multicellular, Eukaryotic, and Photosynthetic Autotrophs rarely found heterotrophs having cellulosic cell walls. All are embryophytes. Echiler (1833) divided the plant kingdom into two Read more…
The Swadeshi and Boycott Movement The initiation of the Swadeshi and Boycott movement was a reaction to the Partition of Bengal, Which came into public view in 1903. It was formally announced in July 1905 and came into force in October 1905. So it was initiated as an anti-partition movement Read more…
The Era of Militant Nationalism in India Militant Nationalism in India -(1905- 1909) A militant nationalist approach to political activity emerged in the 1890s and it come visible by 1905. In addition to this trend, a revolutionary wing also came into existence. Growth of Militant Nationalism Many factors were responsible Read more…