environments for life

Organism and Environment - Each and every living organism has its specific surrounding medium of environment with which it continuously interacts and remains fully adapted. The environment is the sum total of physical and biotic conditions influencing the responses of ..

Introduction - The term ecology is derived from two Greek words (oikos - means 'house' or place to live and logos means 'a discussion or study'). Literally, ecology is the study of organism 'at home' in their native environment. The term was first introduced by Reiter in 1868, but was ful..

The characteristics of organisms Life cycles of organisms Organisms and environments..

The simplest structural units into which a complex multicellular organism can be divided and still retain the functional characteristic of life, are called cells. One of the unifying generalisations of biology is that certain fundamental activities are common to almost all cells and repre..

Conservation of wild life has three objectives a) To maintain essential ecological processes and life supporting systems. b) To preserve the diversity of species or the range of genetic material found in the world's organisms. c) To ensure sustainable utilisation of species and..

Summary - All living organisms are composed of one or more cells. A cell is the structural and functional unit of life. The metabolic reactions in a living organism - can occur only in a delicately balanced environment. Through their unique chemical composition, cells provide a specific h..

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 biodiversity and including cul..

1) They produce food for all organisms 2) They provide beneficial substances like drugs, tannins, fibres, rubber, vegetable oils, fuel, condiments. 3) Some plants contain alkaloids which check growth of cancer cells. Example: Rosy periwinkle. 4) Plants release O 2 , cool environment by r..

The term environment refers to the natural elements that make up the Earth and surround living organisms, enabling life. The study of the environment and its proper conservation, has gained enormous importance in last three decades. The term environmental pollution has..

Ethics is a discipline concerned with moral obligations, with emphesis on right and wrong. Our obligation towards the environment and other species is environmental ethics. We are right now over exercising our right and failing in our duty towards the environment. We have a righ..