Short not on Ecosystem Approach - Ecosystem

This is most recent development in ecology. Ecosytem is the highest level of biological organisation, all ecological concept can be set within this frame work. This approach is base on two things, the flow of energy and cycling of matter between living and non living components. This system introduces a concept of self regulation and self sufficiency living organisms and their non living enviroment interact in most coordinated matter and any disturbance may lead to biological disbalance. Earth is an example of ecosystem which has both living things (biotic factors) and non living environment (abiotic factors) and each influence the other.

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Locomotion

Locomotion: 

            Locomotion in various organisms takes place in a variety of ways because it is brought about by different organs. Although Amoeba, earthworm and snake apparently look crawling but the organs involved are totally different. Similarly a paramecium and a fish both swim; Paramecium swims by its cilia whereas the fish uses its muscles and skeleton.

 

 

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