Phylum Platyhelminthes (Greek; platys= Flat; helmins = worms); The flatworms. Phylum Platyhelminthes includes 13000 species. These are found as free-living as well as parasitic life forms. These are also called Flatworms because of having a dorso-ventrally flattened body. Characteristics features Read more…
Phylum- Ctenophora Ctenophora- singular ctenophore. These are commonly called sea walnuts or comb jellies or Venus’s girdles. Phylum Ctenophorehas a wide range of body forms, including the flattened, deep-sea Platyctenids, in which the adults of most species lack combs, and the coastal Read more…
Phylum – Coelenterata (Cnidaria) The name Cnidaria- is derived from the word cnidoblast or cnidocytes which contains stinging capsules or nematocytes. This phylum is a group of aquatic or marine organisms. The members of Coelenterata are found in colonies or Read more…
List of Important Glaciers of Himalayan mountain The Glaciers are reservoirs of freshwater. They are formed from a mass of compacted recrystallized snow with the ability to flow. In simple words, a glacier is a huge mass of ice that Read more…
List of main volcanoes in the world (For UPSC and other exams) Volcanos are landforms created by the accumulation of solidified lava and volcanic detritus from the earth’s crust. The list of main volcanos in the world and their features Read more…
Volcanoes: Definition, Types, & Facts Volcanoes referred to landforms created by the accumulation of solidified lava and volcanic detritus near the vent. In simple words, a volcano is a rupture in the crust of a planetary-mass object, like Earth, by Read more…
Continental Drift Theory Continental Drift Theory: Abraham Ortelius first put forward the speculation that the continent might have ‘drifted’ in 1596. The first comprehensive and fully developed Continental Drift Theory was proposed by a German meteorologist, Alfred Wegener in 1912. Read more…
Metamorphic rocks – Types and Characteristics Introduction: Metamorphic rocks are formed by the transformation of pre-existing rocks (igneous, sedimentary) to a new type of rock and then followed by the process called metamorphism. The pre-existing rock is subjected to high Read more…
Sedimentary rocks Sedimentary rocks are a type of rock formed by the accumulation or deposition of organic particles or minerals and their consolidation at the earth’s surface. The whole process of formation of these rocks is called sedimentation. Types of Read more…
The Rocks- Igneous Rocks: Introduction: Rocks are naturally occurring solid masses. These are aggregates of minerals like feldspars, micas, amphiboles, pyroxenes, olivine, quartz, calcite, dolomite, clays, and gypsum. Some rocks also contain mineraloids, which are rigid, mineral-like substances, like volcanic Read more…
