one artificial ecosystem

An ecosystem is a self sustaining structural and functional unit of the biosphere. The ecosystem may be large or small. In the biosphere several ecosystems exist. Usually there is exchange of material and energy between adjoining ecosystems. Ecosystems..

In this process semen is collected from a bull of desirable breed and stored at freezing temperature. This semen is injected into the vagina of cows during the period of heat of the animal, for fertilization. This method has many advantages: As many as 3000 cows can be fertilized by the semen co..

Artificial Kidney - The haemodialyzer or artificial kidney is a machine used to filter the blood of a person whose kidneys are damaged. The process is called haemodialysis. Haemodialysis is defined as the seperation of small molecules from large molecules in a solution by interp..

1) Besides inorganic nutrient input, with the inflow of waste water, decomposition of organic wastes, plant nutrients such as nitrates and phosphates takes place. This promotes the growth of oxygen consuming algae (algal bloom), especially the blue-green algae. The growth of oxygen consum..

An ecosystem can be defined as 'a structural and functional unit of biosphere or segment of nature consisting of community of living beings and the physical environment, both interacting and exchanging materials between them'. E. P. Odum, an American ecologist, defined ecology as, 'the st..

In an ecosystem there are two processes proceeding simultaneously: 1 ) Energy flow and 2 ) Biogeochemical cycle The energy flow is in a single direction and is non-cyclic where as Biogeochemical flow is cyclic (Any mineral cycl..

In 1961, Kornberg and his coworkers synthesized DNA from a mixture of deoxyribonucleoside triphosphates, DNA polymerase enzyme, metal ions and a segment of viral DNA functioning as a primer. The synthetic DNA showed biological activity. When introduced into bacteria, this DNA coded one fr..

The earliest attempt towards classification of living organisms is seen in the works of many ancient philosophers in Greek and India. The information available from many ancient scriptures of our country indicates the attempts made by Indians towards classification of plants and animals. An ancient..

. Nowadays other bombarding particles (i.e., projectiles) like protons ( 1 H 1 ), deutrons 1 H 2 electrons can be accelerated to very high speeds by fluctuating electric and magnetic fields in machines such as cyclotron, synchrotron etc. These high speed particles are ..

Introduction - Biogeography reveals that living organisms (plants and animals) are found practically everywhere on this earth. The living components interact among themselves as well as with their physical environment like soil, air and water. The branch of biology, which deals with the relationshi..