This region extends from the earth (about 8-10 km at the polar latitude, 12 km at the moderate latitude and 18 km at the equator).
5 distinct layers of atmosphere characterized by the slope of its temperature
Article shared by 
Short essay on the significances of food chains
Article shared by
Food chain studies help us to understand the feeding relationships and the interaction between organisms in any eco-system. They help us to understand the energy flow mechanism and matter circulation, such as circulation of toxic substances in the eco-system and the problem of biological magnification.
Short essay on food web in eco-system
Article shared by
In nature, food chain relationships are very complex. They never operate as isolated sequences, as one organism may form the food source of many organisms and so on. Thus, instead of a food chain, a number of food chains are interconnected with each other and form a web-like structure known as ‘food web’.
The transformation of energy between the different components of an eco-system – ‘energy flow’
Article shared by
This is very important, as it determines the density and diversity of organisms as well as their development and functional status. The energy flow in an eco-system is always unit-directional in nature.
Essay on bio-geochemical cycles
Article shared by
There exists a direct link between abiotic and biotic components. The abiotic components are in continuous cycle; from the environment they enter the living organisms and from these organisms return to the environment after their death and decay.
Essay on the aquatic eco-systems
Article shared by
On the basis of salinity, aquatic eco-systems can be freshwater ecosystem and marine eco-system. Examples of freshwater eco-systems are ponds, lakes, rivers, etc., which are either lotic (running water) or lentic (standing water).
Short notes on Biotic and Abiotic components of our ecosystem
Article shared by
The biotic components are all the living organisms present in an environment. In an eco-system, the connections between species are generally related to food and their role in the food chain.
Short notes for students on eco-system
Article shared by
Thermodynamically, a system is any part of the universe separated from the rest by a well-defined boundary. Likewise, a living organism has a boundary, the skin.
3 laws proposed to explain the effect of different limiting factors on living organisms
Article shared by
An organism requires minimum quantity of a particular nutrient for its proper growth and if it is depicted below the critical minimum level, the organism will fail to grow or will grow abnormally.
Edaphic factors deal with the structure formation and characteristics of different types of soils
Article shared by
Edaphic factors deal with the structure formation and characteristics of different types of soils.
8 important effects of climatic factors on living organisms
Article shared by
Light plays a vital role for both plants and animals. Sunlight is the ultimate source of energy for the biological world.
What are the main objectives of ecology?
Article shared by
The importance of ecology is due to the presence of man in the ecosystem. Man interacts not only with its own species but also with other living organisms.
Ecology is a branch of science that deals with the inter-relationship between biotic and abiotic components – Essay
Article shared by
Ecology is a branch of science that deals with the inter-relationship between biotic (living) and abiotic (non-living) components of nature as well as with the relationship among the individuals, population and community of the biotic components.
3 important interdependent components of sustainable development
Article shared by
Sustainable development is the development that meets the needs of the present without jeopardizing the needs of future generations.
3 important parameters that comes under demography
Article shared by
The logistic growth equations can predict with some degree of accuracy the density dependent population, but not the human population growth.
Free essay for students on population growth
Article shared by
The term population originated from the Latin word populus, meaning people. In ecology, population is defined as a group of organism of a particular species, which breed among themselves or have the potential to do so and generally occupy a particular space.