Science > Biology > Applied Biology > Human Health and Diseases > Personal and Domestic Hygiene Health does not simply mean the absence of disease or physical fitness. The World Health Organization (WHO) defines health as a state of physical, mental and social well-being and not merely the absence of disease or infirmity. Thus WHO […]
Science > Biology > Botany> Morphology of Plants > The Leaf The body of a typical flowering plant can be divided into the underground root system and aerial shoot system. The shoot system is heterogeneous. The shoot system (stem) is an aerial and erect part of the plant body that grows upwards. It is usually above […]
Science > Biology > Botany> Morphology of Plants > Modification of Stem In this article, we shall study the modification in stem in some plants for performing the functions other than its primary function. Primary functions of the stem are To support and orient the leaves in a manner that they are exposed to maximum sunlight […]
Science > Biology > Botany> Morphology of Plants > The Stem and Buds The body of a typical flowering plant can be divided into the underground root system and aerial shoot system. The shoot system is heterogeneous. The shoot system (stem) is an aerial and erect part of the plant body that grows upwards. It is usually […]
Science > Biology > Botany> Morphology of Plants > Modification of Roots In this article, we shall study the modification of roots for the purpose of food storage, respiration, support, etc. Roots in some plants change their shape and structure and become modified to perform functions other than absorption and conduction of water and minerals. […]
Science > Biology > Botany > Morphology of Plants > The Root In this article, we shall study morphology of root, different regions of root, and different types of roots. Morphology: Morphology is a branch of biology dealing with the study of the form and structure of organisms and their specific structural features Importance of Morphology: […]
Biology > Microbes in Human Welfare > Sewage Treatment and Biogas Microbes are used for sewage treatment and biogas production. Microbes in Sewage Treatment Necessity of Sewage treatment: A large quantity of wastewater is generated every day in cities and towns. A major component of this wastewater is human excreta. This municipal waste-water is also […]
Biology > Microbes in Human Welfare > Industrial Uses of Microbes Microbes are omnipresent i.e. they exist everywhere: in soil, air, water and also in the human body and the bodies of plants and other animals! They also exist in places where no other life-form exists. Bacteria, fungi, protozoa, viroids are examples of microorganisms. The […]
Biology > Microbes in Human Welfare > Household Uses of Microbes Microbes are omnipresent i.e. they exist everywhere: in soil, air, water and also in the human body and the bodies of plants and other animals! They also exist in places where no other life-form exists. Bacteria, fungi, protozoa, viroids are examples of microorganisms. The […]
Biology > Animal Husbandry > Sheep, Goat, and Pig Farming Meat yielding animals include sheep, goats, and pigs. Sheep: Sheep is the second largest species reared by mankind and it provides wool, meat, milk, and hides. Their droppings form good manure. It provides a dependable source of income to the shepherds through the sale of […]