What is Ecosystem? How many marks carried by the chapter Ecosystem in class 12 board examinations? Why we study the chapter Ecosystem? How important the chapter Ecosystem? What is biotic and abiotic component?
There are two components in an ecosystem. Interaction of biotic and abiotic components results in a physical structure that is characteristic for each type of ecosystem. Identification and enumeration of plant and animal species of an ecosystem gives its species composition. Vertical distribution of different species occupying different levels is called stratification. For example, trees occupy top vertical strata or layer of a forest, shrubs the second and herbs and grasses occupy the bottom layers.
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