Notes and Study material for Exams
FOOD CHAIN- A food chain starts with producers and ends with top carnivores. The sequence of eaten and being eaten, produces transfer of food energy and it is known as food chain. Grazing food chain-The consumers which start the food chain, utilising the plant or plant part as their food, constitute the grazing food chain. … Read more
ECOLOGY is defined “as a scientific study of the relationship of the living organisms with each other and with their Environment.” The classical texts of the Vedic period such as the Vedas, the Samhitas, the Brahmanas and the Aranyakas–Upanishads contain many references to ecological concepts .The Indian treatise on medicine, the Caraka- Samhita … Read more
Concept of Organic Farming, seed certification Organic farming is an alternative agricultural system which originated early in the 20th century in reaction to rapidly changing Farming practices. Organic farming continues to be developed by various organic agriculture organizations today. It relies on Fertilizers of organic origin such as Compost Manure, green manure, and Bone Meal … Read more
–2/”>a >DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> The nervous system is a complex collection of nerves and specialized cells known as neurons that transmit signals between different parts of the body. It is essentially the body's electrical wiring. Structurally, the nervous system has two components: the central nervous system and the peripheral nervous … Read more
Transpiration is the process by which moisture is carried through Plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the Atmosphere. Transpiration is essentially Evaporation of water from plant leaves.The survival of plants is dependent on a number of factors which include water, Minerals, gases, and nutrients … Read more
DNA: STRUCTURE DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the … Read more
Soil fertility refers to the ability of a soil to sustain agricultural plant Growth, i.e. to provide plant habitat and result in sustained and consistent yields of high quality. A fertile soil has the following properties:- It is rich in nutrients necessary for basic plant nourishment. This includes nitrogen, phosphorus and potassium. It consists of adequate Minerals such as boron, … Read more
It is also known as Ebola hemorrhagic fever. It is a severe acute viral illness which during an outbreak cause the fatality rate can go upto 90%. The first confirmed Ebola Virus Disease in human was reported in 1976 at Democratic Republic of Congo. Transmission of Ebola Virus Disease Ebola is introduced into the human Population through close contact with blood secretion … Read more
Rasfreenotes team presents Module 2: General Science to the RAS/RTS Aspirants. Module 2 consists of following sections:- Physics Biology Chemistry The importance of general science can be accessed by the number of questions from the section. You could buy module 2 in just 99 INR for promotional period. For any doubt leave a mail @rasfreenotes@gmail.com, Science is … Read more
Metabolism is the set of life-sustaining chemical transformations within the cells of organisms. The three main purposes of metabolism are the conversion of food/fuel to energy to run cellular processes, the conversion of food/fuel to building blocks for proteins, lipids, nucleic acids, and some Carbohydrates, and the elimination of nitrogenous wastes. These enzyme-catalyzed reactions allow … Read more