IGNOU TS 5 2013 - Define ecosystem. Explain the various components of ecosystem and thei

Question

Define ecosystem. Explain the various components of ecosystem and their linkages.

31 May 2018

Answer :

Word Count : 1017

An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system. These biotic and abiotic components are regarded as linked together through nutrient cycles and energy flows. As ecosystems are defined by the network of interactions among organisms, and between organisms and their environment, they can be of any size but usually encompass specific, limited spaces (although some scientists say that the entire planet is an ecosystem).

Major Abiotic Factors are -

Planet Earth is the only known planet that has conditions suitable enough for living organisms to grow, reproduce and survive. These conditions are a combination of non-living components like water, sunlight, temperature and living components like micro-organisms, plants and animals. The non-living components of a particular environment that make the conditions ideal for sustenance of life are known as the abiotic factors.

Some of the important abiotic factors that affect living organisms are:

Water

Water can easily be called the lifeblood of Earth. The planet’s surface is covered by 70% water and it is the essential component of all living beings. 75 % of the human body is comprised of water, with 90% of blood

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