Categories
General Biology

Basis of Biodiversity

Science > Biology > General Biology > Diversity of Living Organisms > Basis of Biodiversity Scientists have identified and named 1.7 to 1.8 million species of living organisms. Of these, about 1.2 million are animal species while 0.5 million are plant species. The group of insects is the largest group with 1.025 million species. According […]

Categories
General Biology

Biodiversity

Science > Biology > General Biology > Diversity of Living Organisms > Biodiversity Scientists have identified and named 1.7 to 1.8 million species of living organisms. Of these, about 1.2 million are animal species while 0.5 million are plant species. The group of insects is the largest group with 1.025 million species. According to biologists […]

Categories
General Biology

Characteristics of life

Science > Biology > General Biology > Introduction to Biology > Characteristics of life Biology is a branch of science which studies living beings that all plants and animals including humans. Biology examines the structure, function, growth, origin, evolution, and distribution of living things. It classifies and describes organisms, their functions, how species come into existence, and […]

Categories
Human Biology

Alimentary Canal: Brief Idea

Science > Biology > Digestion and absorption in Human > Alimentary Canal: Brief Idea The digestive system in humans consists of an alimentary canal and associated digestive glands. The human alimentary canal (aliment: nourish) is a continuous muscular digestive tube about 8 to 10 m long that runs through the body. It is open at two ends […]

Categories
Human Biology

Buccal Cavity: Teeth

Science > Biology > Digestion and absorption in Human > Buccal cavity – Teeth In this article we shall study, the characteristics of teeth (dentition), different types of teeth and the structure of the tooth. The teeth are the strongest, hardest and rigid substances in the human body specialized for the biting and grinding of […]

Categories
Human Biology

Buccal cavity – Mouth

Science > Biology > Digestion and absorption in Human > Buccal cavity – Mouth The digestive system in humans consists of an alimentary canal and associated digestive glands. The human alimentary canal (aliment: nourish) is a continuous muscular digestive tube about 8 to 10 m long that runs through the body. It is open at two ends […]

Categories
Biology

Disease

Science > Biology > Applied Biology > Human Health and Diseases > Disease A major cause of ill health is ignorance, for example, ignorance about a balanced diet, or about the harmful effect of tobacco and alcohol. To achieve and maintains good health, basic knowledge about the body should be a part of education. Good […]

Categories
Biology

Community Hygiene

Science > Biology > Applied Biology > Human Health and Diseases > Community Hygiene Some health measures can be undertaken only by the community as a whole. Community hygiene includes water source protection, proper disposal of solid waste and excreta, wastewater drainage, controlling animal rearing and market hygiene. It is the responsibility of the community leader with legal […]

Categories
Biology

Personal and Domestic Hygiene

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 […]

Categories
Botany

The Leaf

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 […]