Ecosystem Class 12 Notes: Chapter 14 An ecosystem consists of all the living organisms including plants, insects, microorganisms, birds and animals and non-living things including rocks, soil, water and sunlight in the community interacting with each other in a given area of their environment. It is a functional unit of nature and includes both abiotic …
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Organisms and Populations Class 12 Notes
Organisms and Populations Class 12 Notes: Chapter 13 An Organism refers to a contiguous living system that lives in an environment and has the capability to adapt and retain certain structure and behavior. It includes fungus, bacteria, plants, animals, and humans. Major abiotic factors which lead to variation in the physical and chemical conditions of different …
Biotechnology and its Applications Class 12 Notes
Biotechnology and its Applications Class 12 Notes: Chapter 11 Biotechnology is defined as the broad area of biology which uses both the technology and the application of living organisms and their components to develop, modify and to produce a useful product for human welfare. The term ‘Biotechnology’ was coined in the year 1919 by an …
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Biotechnology:Principles And Processes Class 12 Notes
Biotechnology:Principles And Processes Class 12 Notes: Chapter 11 Biotechnology is defined as the broad area of biology which uses both the technology and the application of living organisms and their components to develop, modify and to produce a useful product for human welfare. The term ‘Biotechnology’ was coined in the year 1919 by an agricultural …
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Microbes in Human Welfare Class 12 Notes
Microbes in Human Welfare Class 12 Notes: Chapter 10 Microbes, also called as the microorganisms are the major components of biological systems on the earth. They are present everywhere, around us, in the soil, water, air, and both in and on our body. They are also found in other animals and plants. These organisms are …
Strategies for Enhancement in Food Production Class 12 Notes
Strategies for Enhancement in Food Production Class 12 Notes: Chapter 9 Food is the substance which provides all necessary nutrients in order to meet the body nutritional requirements for proper functioning of our body cells. The food which we all consume contains the required amount of carbohydrates, proteins, vitamins and fats. Food production is the …
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Human Health and Disease Class 12 Notes
Human Health and Disease Class 12 Notes: Chapter 8 In simple terms, Health can be defined as free from all diseases and infections. According to the World Health Organization (WHO), health is not only the absence of disease or illness. It is a state of an active and energetic condition including the physical, mental, and …
Evolution Class 12 Notes
Evolution Class 12 Notes: Chapter 7 Evolution is the study of the different forms of life, its characteristics and the changes over several generations. It is the scientific theory used by biologists to study the genetic variation in a population. There are many theories about how life originated on the planet earth. The theory of …
Molecular Basis of Inheritance Class 12 Notes
Molecular Basis of Inheritance Class 12 Notes: Chapter 6 DNA- Deoxyribonucleic Acid is considered as the molecule of inheritance as it carries genetic information in all living organisms. It is a long polymer chain of deoxyribonucleotides. Its length depends on the number of nucleotide base pair present in it. Please refer Molecular Basis of Inheritance …
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Principles of Inheritance and Variation Class 12 Notes
Principles of Inheritance and Variation Class 12 Notes: Chapter 5 Heredity is a process of transferring traits from parents to their offspring’s either through the asexual reproduction or sexual reproduction. These traits are present on the chromosomes in the form of genes and these genes are the characters which may be similar to one of …
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CBSE Revision Notes 