Tag: evs - i

Biome is a community that consists of plants and animals having common characteristics in a given environment. In other words, biome has organisms of various trophic levels reacting with abiotic environment. The different biomes include aquatic biome, forest biome, desert biome, tundra biome and grassland biome.

An ecosystem is all plants and animal species along with environment. It consists of biotic components such as producers, consumers and decomposers and abiotic components such as air, water, temperature, soil. It contains both food chain and food web. Food chain consists of producers, consumers and decomposers. It is a series of plants/animals which are interrelated in the form of organism being eaten as food by the other organism. Various interlinked food chains in a community constitutes the food web.

Dynamic aspects of an ecosystem are mineral cycles and energy flow. Mineral cycles are biogeochemical cycles through which there is exchange or circulation of nutrients in the biosphere. Energy flow occurs in a unidirectional manner in an ecosystem from lower trophic levels to higher trophic levels. Through these dynamic aspects, biotic and abiotic components of an ecosystem are connected. Biotic components are living part of the environment which include producers, consumers and decomposers whereas abiotic components are non living part of the environment which include light, water, temperature etc.