… has on its face millions of plants, trees, herbs and shrubs one or the other part of which is edible, even though it may not be considered standard food. Karonda is one such interesting Asian shrub, which, though a humble wild bush, bears tasty and…

… increase in agricultural output over the past decades is largely owing to improved varieties of seeds. A crucial component in farming, the importance of the quality of seeds thus cannot overemphasised. Herein lies the role of certified seeds. Benefits…

… prevention of disease is considered to be a better proposition than cure. It is more so in the elderly because people from other age groups may easily recover from a disease, where old people do so slowly or partially. Therefore, disease prevention…

… on Earth. About 46 percent of the Earth's crust is oxygen. It is colorless and odorless and makes up about 20.95 percent of the atmosphere by volume. Oxygen exists in water as part of water molecule, in the atmosphere as a gas, in the Earth's…

… is a disease in which cancer (malignant) cells are found in the outer layers of your skin. Your skin protects your body against heat, light, infection, and injury. It also stores water, fat, and vitamin D. The skin has two main layers and several kinds…

… scientists have two basic approaches at their disposal. One approach analyzes nuclear DNA and is useful in identifying someone who is alive or has died only recently. This is the technique used to incriminate (or exonerate) suspects of crimes and in…

… worldwide on a large-scale basis for many centuries. This process, known as deforestation, involves the cutting down, burning, and damaging of forests. The loss of tropical rain forest is more profound than merely destruction of beautiful areas. If…

… (CHD)? CHD has two principal forms - angina and heart attacks (myocardial infarction). Both occur because the arteries carrying blood to the heart muscle become blocked or narrowed, usually by a deposit of fatty substances, a process known as…

… nutrients, glucose, proteins, minerals, enzymes, waste products, antibodies, clotting proteins and hormones. Its role is transporting the substances around the body. Plasma contains 90% water and only 10 the solutes. Erythrocytes (also called red…

… desert. They must find shelter from daytime heat and nighttime cold, as well as find food and water, which are often scarce. Yet, in spite of these extreme conditions, most animal species are represented in the desert environment, even some we typically…