Browsed by
Category: Science

Human Circulatory System Notes for SSC CGL, CHSL and Railways

Human Circulatory System Notes for SSC CGL, CHSL and Railways

Human Circulatory System Heart Arteries Veins Blood Blood [Plasma (54%) + WBCs (0.7%) + RBCs (45%) + Platelets] The main functions of blood are to transport oxygen, carbon dioxide, water, nutrients, hormones and waste around the body. Blood also fights infection and regulates temperature. Haemopoiesis: The production of blood cells and platelets, which occurs in the bone marrow. Plasma (Yellowish Liquid) Mostly water (up to 95% by volume) and contains dissolved proteins (6–8%) (i.e.—serum albumins, globulins, and fibrinogen), glucose, clotting…

Read More Read More

Atoms and Molecules Notes for SSC, Banking and Railways 2019

Atoms and Molecules Notes for SSC, Banking and Railways 2019

Atomic Theories Democritus (470-380 B.C.) [Father of Atomic Theory (early)] He proposed that matter could NOT be divided into smaller pieces forever. He claimed that matter was made of small, hard particles that he called “atomos” Antoine Lavoisier (father of modern chemistry) Laws of Chemical Combination Law of Conservation of Mass: The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reactions, i.e., the total mass of the products is same as…

Read More Read More

Diseases in Humans Notes for SSC CGL, CHSL and Railways

Diseases in Humans Notes for SSC CGL, CHSL and Railways

Disease A disease is a particular abnormal condition that negatively affects the structure or function of part or all of an organism, and that is not due to any external injury. DPT (Diphtheria, Pertussis and Tetanus) is a class of combination vaccines against three infectious diseases in humans. Various Disease and their Agents Agent Diseases Bacteria Diphtheria, Gonorrhea, Cholera, Leprosy, Typhoid, Tetanus, TB, Plague, Whooping Cough, Pneumonia Virus Chicken Pox, Small Pox, Measles, Mumps, HIV/AIDS, Yellow fever, Influenza, Dengue Fever,…

Read More Read More

Notes on Work, Energy and Power for SSC, Banking and Railways.

Notes on Work, Energy and Power for SSC, Banking and Railways.

Work (w) Work is said to be done when a force is applied on a body and the body displaces from its initial position. w = F x s Types of Work (Positive, Negative, Zero) Positive Work Done: When the displacement is in the direction of the force applied. Ex: A boy pulls an object towards himself. Negative Work Done: If the displacement is in the opposite direction of force applied. Ex: When you’re pushing an object along the floor…

Read More Read More

जीवों का वर्गीकरण के नोट्स (हिंदी में) SSC तथा अन्य परीक्षाओं के लिए

जीवों का वर्गीकरण के नोट्स (हिंदी में) SSC तथा अन्य परीक्षाओं के लिए

जैविक समूहों का वर्गीकरण जगत (किंगडम) > फाइलम (जंतु) / डिवीज़न (पादप) > वर्ग (क्लास) > गण (आर्डर) > कुल (फॅमिली) > वंश (जीनस) > जाति (स्पीशीज) जगतों (किंगडम) का वर्गीकरण वर्गीकरण के प्रकार प्रस्तावना जगत 2 जगत वर्गीकरण कार्ल लीनियस प्लांटी और एनिमेलिआ 3 जगत वर्गीकरण एर्न्स्ट हेकेल प्लांटी, प्रोटिस्टा और एनिमेलिआ 4 जगत वर्गीकरण कोपलैंड मोनेरा, प्रोटिस्टा, प्लांटी और एनिमेलिआ 5 जगत वर्गीकरण रोबर्ट व्हिटेकर मोनेरा, प्रोटिस्टा, फंजाई, प्लांटी और एनिमेलिआ 6 जगत वर्गीकरण कार्ल वोस आर्किबैक्टीरिया, युर्बैक्टीरिया,…

Read More Read More

Classification of Living Organisms Notes for SSC & Other Exams

Classification of Living Organisms Notes for SSC & Other Exams

Hierarchy of Biological Classification Kingdom > Phylum (for Animals) / Division (for Plants) > Class > Order > Family > Genus > Species Classification of Kingdoms Type of Classification Proposed By Kingdoms Two Kingdom Classification Carolus Linnaeus Plantae and Animalia Three Kingdom Classification Ernst Haeckel Plantae, Protista and Animalia Four Kingdom Classification Copeland Monera, Protista, Plantae and Animalia Five Kingdom Classification RH Whittaker Monera, Protista, Fungi, Plantae and Animalia Six Kingdom Classification Carl Woese Archaebacteria, Eubacteria, Protista, Fungi, Plantae and…

Read More Read More

Human Nervous System Notes for SSC CGL, CHSL and Railways

Human Nervous System Notes for SSC CGL, CHSL and Railways

1. Nervous System (Central, Peripheral, Autonomic) The functioning of the nervous system depends on detecting a stimulus in the internal or external environment and responding to it. Neuron (Sensory, Motor, Association/Connecting): basic unit of nervous system. After birth there is no cell division of nerves in humans. The biological death of a patient means the death of the tissues of the Brain. The aquatic animal with the most developed intelligence is Shark. 1.1 Central Nervous System (Brain + Spinal Cord)…

Read More Read More

Food: Where Does It Come From Notes CBSE Class 6 Ch 1

Food: Where Does It Come From Notes CBSE Class 6 Ch 1

Food Nutritious substance that living organisms consume in order to maintain life and growth. Food is required for energy, growth, body functions, wound healing and for maintaining good health, etc. Plants as Source of Food Plant roots used as food for example Carrot, Turnip, Radish, Beetroot. Plant stems used as food for example Potato, Coriander, Sugarcane. Plant leaves used as food for example Spinach, Cabbage, Onion. Plant flowers used as food for example Rose, Cauliflower, Bauhinia(Kachnar) Plant fruits used as…

Read More Read More