SAJINS EDUGALAXY

                                          BIO DIVERSITY CONSERVATION In Situ  Conservation Methods In-situ conservation, the conservation of species in their natural habitats, is considered the most appropriate way of conserving biodiversity. Conserving the areas where populations of species exist naturally is an underlying condition for the conservation of biodiversity. That's why protected areas form a central element of any national strategy to conserve biodiversity.    1. WILD LIFE SANCTUARY Forest areas declared as protected areas to prevent the extinction of wild lives by protecting the ecosystem . Peppara , Periyar , Wayanad etc . 2. NATIONAL PARKS TO PROTECT WILD LIVES ALONG WITH THE PROTECTION OF HISTORICAL MONUMENTS , NATURAL RESOURCES AND GEOGRAPHICAL FEATURES OF AN ERA . ERAVIKULAM , SILENT VALLEY , ANAMUDI SHOLA , MATHIKETTAN SHOLA AND PAMBADUM SHOLA . 3. COMMUNITY RESERVES  ARE AREAS PROTECTED WITH THE PARTICIPATION OF THE P

                              POLYHOUSE FARMING What is a polyhouse? Polyhouse or a greenhouse is a house or a structure made of translucent material like glass or polyethylene where the plants grow and develop under controlled climatic conditions. The size of structure can differ from small shacks to big-size buildings as per the need. Above all, a greenhouse is a glass house whose interiors become warm when exposed to sunbeams as the house stops the greenhouse gas to leave. So when it is cold outside, the temperature inside is survival friendly and warm for the plants. Difference between Greenhouse and Polyhouse Polyhouse is a type of greenhouse or we can say that it is a smaller version of greenhouse, where polyethylene is used as the cover. In developing countries like India, polyhouse farming is a popular greenhouse technology due to its low cost of construction and easy maintenance. Lath house is one more greenhouse technology where wood is used as the cover. Po

                                   FERTILIZATION IN PLANTS A plant is a nature’s gift as they provide us with the food, oxygen, shelter, clothing, etc. They are also known as the universal or primary producers. Like all other living things, plant do respire, grow, develop, excrete and reproduce. All higher plants reproduce by fertilization. Fertilization in flowering plants was discovered by Ralph B. Strassburger in the year 1884. Let us have a brief discussion on fertilization. Fertilization is the fusion of the male and the female gamete produced by the pollen grain to develop into a diploid zygote.  It is a physicochemical process which occurs after the  pollination  of the carpel. The complete series of this process takes place in the zygote to develop into a seed. In fertilization process, flowers play a major role as they are the reproductive structures of angiosperms.  The process of fertilization in plants occurs when gametes in haploid conditions

                                             FIVE KINGDOM CLASSIFICATION Very early on, scientists began grouping the living organisms under different categories. Some biologists classified organisms into plants and animals. Ernst Haeckel, Robert Whittaker, and Carl Woese are some biologists who attempted a broader system of classification. Amongst these, the Five Kingdom Classification proposed by Robert Whittaker stood out and is widely used. Whitaker proposed that organisms should be broadly divided into kingdoms, based on certain characters like the structure of the cell, mode of nutrition, the source of nutrition, interrelationship, body organization, and reproduction. According to this system, there are five main kingdoms. They are: Kingdom Monera Kingdom Protista Kingdom Fungi Kingdom Animalia Kingdom Plantae Kingdoms are divided into subgroups at various levels. The following flowchart shows the hierarchy of classification. Kingdom → Phylum  →  Class  →   

                           NUCLEUS                                                                                      STRUCTURE OF NUCLEUS Nucleus ​ is a membrane bound structure that contains the cell’s hereditary information and controls the cell’s growth and reproduction. Nucleus is present in all eukaryotic cells, they may be absent in few cells like the mammalian RBCs. The shape of the nucleus is mostly round, it may be oval, disc shaped depending on the type of cell. It is the command center of a eukaryotic cell and is commonly the most prominent organelle in a cell. Nucleoplasm is the fluid part of nucleus . Nucleolus and chromatin reticulum are seen here . Nucleolus are spherical bodies, plays a major role in the synthesis of ribosomes . Chromatin reticulum are seen as a network in the nucleoplasm . they carry genes . The nuclear envelope is a double membrane that separates the nucleus from the cytoplasm. The nuclear envelope is perforated with numero

                                                        WESTERN GHATS Western Ghats also known as Sahyadri is a mountain range that covers an area of 140,000 km² in a stretch of 1,600 km parallel to the western coast of the Indian peninsula, traverse the States of Kerala, Tamil Nadu, Karnataka, Goa, Maharashtra and Gujarat. Running along the entire west coast of India, the mountains of the Western Ghats are no snow-peaked Himalayas. But what they lack in height they make up for in biodiversity, harbouring an impressive array of India’s wildlife. Elevation :  2,695 m Area :  160,000 km² Highest point :  Anamudi Passes :  Palakkad Gap ,  Tamhini Ghat ,  Naneghat ,  Thal Ghat A biodiversity hotspot More like rolling hills than snow-covered mountains, the Western Ghats - stretching some 1,600km from the north of Mumbai to the southern tip of India - are a biodiversity hotspot that contains a large proportion of the country's plant an