Biology is the branch of science that deals with life and living organisms. The main objective of Biology is to understand the various processes taking place inside any living organism. It includes the formation of cells, composition of cells and formation of tissues. It also reflects on the changes occurring in human body. It depicts how the living and non living components interact with each other.
Here we will cover the various topics regarding Biology for Class 9. The concepts that are mastered in the lower classes help us to crack many entrance examinations like NEET, AIIMS, AIPMT, UPSC etc. At ABHYASONLINE.IN you can master the concepts at your own learning pace. It provides conceptual testing with analytical reports identifying the weak, moderate and strong concepts. We, at ABHYASONLINE.IN believe that, if the weak concepts are timely identified and improved, then every student can achieve their goals in life. Follow the links below to understand and master each and every concept of various topics in Biology along with video lectures.
The Environment means the physical and biological conditions in which a person lives. The interaction between organism is known as ecosystem. In this section of Our Environment Biodegradable and Non-Biodegradable materials, Biological Magnification, CFCs and the Ozone Hole, Human-generated Waste, Humans Affect the Environment, Management of Garbage and Sewage, etc., have been explained. Watch the videos and master the concepts
In 19th Century man realized that his way of living and the environment around him affected his health and by controlling these factors he could prevent certain diseases In this section of Why Do We Fall Ill AIDS, Antibiotics, Cholera, Control of Vectors, Diarrhoea, General Prevention of Infectious Diseases, Hepatitis, Immunization, Influenza, Jaundice, Malaria, Prevention is better Than Cure, Prevention of Infectious Diseases, Proper Disposal of Waste, Rabies, Safe Drinking Water, Strong Immune System, Tuberculosis, Typhoid ,etc. have been explained. Watch the videos and master the concepts
In 19th Century man realized that his way of living and the environment around him affected his health and by controlling these factors he could prevent certain diseases In this section of Why Do We Fall Ill Acute and Chronic Diseases, Balanced Diet, Basic Conditions of Good Health, Causes of Diseases, Clean Air, Clean Food and Water, Clean Surroundings, Diseases, Eliminating Infectious Agents, Exercise and Relaxation, Good Economic Conditions, Good Health, Infectious Diseases, No Addiction, Personal Hygiene, Signs and Symptoms of a Disease, Spreading of Communicable Disease, Spreading of Communicable Disease Through Air, Through Body Fluids,etc. have been explained. Watch the videos and master the concepts
All living organisms breathe. This process is known as respiration. Respiration involves the use of oxygen to break down carbohydrates and other organic molecules, giving usable energy In this section of Life Process Respiration Diaphragm, Different Animals with their Respiratory Surfaces, Mechanism of Breathing Inspiration and Expiration, Nasal Cavity, Pharynx and Larynx, Respiration among Plants, Respiration in Amoeba and Paramoecium, Respiration in Aquatic Animals, Respiration in Human Beings, Respiration in Organisms, Respiration in Terrestial Animals, etc., have been explained. Watch the videos and master the concepts
All living organisms breathe. This process is known as respiration. Respiration involves the use of oxygen to break down carbohydrates and other organic molecules, giving usable energy In this section of Life Process Respiration Aerobic Respiration, Anaerobic Respiration, Anaerobic Respiration Alcoholic Fermentation, Anaerobic Respiration Lactic Acid Fermentation, Breathing, Difference between Aerobic and Anaerobic Respiration, Difference between Respiration and Breathing, Adenosine Tri Phosphate ATP, Gaseous Exchange, Oxidation of Food and Respiration, Respiratory Substrate, etc., have been explained. Watch the videos and master the concepts
Nutrition provides nutrients to the body so that energy can be formed which can be used to carry out various activities. Nutrition helps in synthesizing a variety of substances such as proteins carbohydrates etc., In this section of Life Process Nutrition Alimentary Canal, Autotrophic Nutrition, Cross Section of a Leaf, Digestive Glands, Photosynthesis, Heterotrophic Nutrition, Holozoic Nutrition, Human Digestive System, Large Intestine, Liver, Mechanism of Food Digestion, Nutrition in Amoeba, Nutrition in Paramoecium, Oesophagus, Pancreas, Parasites, Peristatic Movement, Pharynx, etc., have been explained. Watch the videos and master the concepts
A Cell is the structural and functional unit of life. Cell is a building block with which all living organism are made, Cell is the smallest unit of life. The various topics that you will find in the links below are cell, how cell was discovered , structure of cell, functions of cell. We have discussed about the type of organism i.e. unicellular and multicellular, cell wall, plasma membrane, cell organelles and many more interesting topics
The biological world consists of many diverse species. There are so many varieties that it is almost impossible to study all of them in a single life span. Organisms have been grouped together on the basis of their features .In this section of diversity of living organism Bacteria, Phylum Annelida, Phylum Arthropoda, Phylum Aschelminthes- Nematoda, Phylum Cnidaria Coelenterata, Phylum Platyhelminthes, Phylum Porifera, Viruses etc. have been explained. Watch the videos and master the concepts
The biological world consists of many diverse species. There are so many varieties that it is almost impossible to study all of them in a single life span. Organisms have been grouped together on the basis of their features .In this section of diversity of living organism Classification, Classification depending on evolution, Taxonomic hierarchy, Taxonomy, Algae, Angiosperms, Animalia, Bryophyta, Charles Darwin, Fungi, Gymnosperms, Hornworts, Liverworts, Monera, Monocotyledons and Dicotyledons, Mosses, Plantae, Protista, Pteridophyte etc. have been explained. Watch the videos and master the concepts
Reproduction is an attribute of a living organism through which it is able to produce more of its kind. In this section of Reproduction Changes After Fertilization, Changes in Human Body, Contraception, Family Planning, Female Reproductive System, Fertilization, Human Reproductive System, Male Reproductive System, Parts of Flower, Pollination, Reproductive Health, Sexual Reproduction, Sexual Reproduction in Flowering Plants, Sexually Transmitted Diseases, etc. have been explained. Watch the videos and master the concepts
In biology, a tissue is defined as a group of cells with similar structure, organized to do a common function. A tissue is a group of similar cells and their extracellular matrix to carry out a specific function. Organs are then formed by the functional grouping of multiple tissues. In this section topics of Animal Tissue like Blood as Fluid Connective Tissue, Cardiac Muscles, Connective tissue, Epithelial tissue, Fluid Connective Tissue, Lymph as Fluid Connective Tissue, Muscular tissue, Nervous tissue, Skeletal Connective Tissue
In biology, a tissue is defined as a group of cells with similar structure, organized to do a common function. A tissue is a group of similar cells and their extracellular matrix to carry out a specific function. Organs are then formed by the functional grouping of multiple tissues. In this section topics of Plant Tissue such as Permanent Tissue, Parenchyma, Collenchyma, Sclerenchyma, Epidermis, Phloem Xylem, etc. have been explained. Watch the videos and master the concepts
A Cell is the structural and functional unit of life. Cell is a building block with which all living organism are made, Cell is the smallest unit of life In this section Topics such as protoplasm, cytoplasm, Endoplasmic reticulum, Ribosomes, Mitochondria, Golgi body, Plastids, Lysosomes, Centrioles, Cytoskeleton, Vacuoles, Nucleus, Chromosomes, Plant Cell, Animal Cell, etc. have been explained. Watch the videos and master the concepts
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