different level of organization of life

Different types of tissue may together become organised into an organ for some specific function. E.g., a gland is an organ meant for secretion. In a gland there are four tissues - Epithelium (for secretion) Muscular tissue (for contraction of the gland) Conne..

Growth is defined as an increase in the size and weight of an organism due to synthesis of new protoplas..

In unicellular organisms the cell leads a totally independent life. It does not depend on any other cell for any of its activity, except in cases of sexual reproduction. There is division of labour only at the organelle level since different organelles perfor..

>Body fat - There is redistribution of fat to deeper parts of the body from the skin. In women, fat is generally stored in the hips and thighs, while in men it is stored in the abdominal area. Retention of water - The capacity of body cells to retain water decreases. This makes the skin dry and wri..

An organism is a distinct unit of life in nature. It is said to be the smallest level and basic unit of ecological hierarc..

The molecules of various chemical substances in a specific proportion become organised into protoplasm - the physical basis of life. The protoplasm gets organised into cells, which represents the structural and functional unit of life. A living organism may have a sin..

Foods [starch, sugar, fats, vitamins, proteins] Fuels [wood, coal, alcohol, petrol] Household and commercial articles [paper, soap, cosmetics, oils, paints] Textile fabrics [cotton, wool, silk, linen, rayon, nylon] Drugs and disinfectants [penicillin, quinine, aspirin, sulpha drugs] ..

Forests and Wild Life - The biotic component of our environment on land, i.e. plants and animals (leaving aside the oceans and other water bodies) are overwhelmingly found in forests. Forests form a buffer for the earth to protect life forms; in fact that's where all our biodive..

Summary - Biologists estimate that there are about 30 million species of living organisms inhabiting this biosphere and only a million and half of it have been discovered and described so far. The species of plants and animals identified so far exhibit a great deal of variation in their f..

An experimenter decided to give three different levels of antibiotic to rats to see if any particular dosage is more effective. Group 1 has low-level antibiotic; Group 2 has medium-level antibiotic; and Group 3 has high-level antibiotic. The li..