Tag: issues of the environment

Ecosystem is a biological community that lives in conjugation with the nonbiological community. It can also be defined as all plants and animal species along with environment. It includes all living things like plants, animals and non-living things like air, water, land, etc.

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.

A. Arthur George Tansley coined the term ecosystem' in 1935 to describe the interactions between organisms and with their environment. 

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.

Term ecosystem was coined by Tansley while the term ecosystem was coined by Ernst Haeckel. Warming wrote the first book on plant ecology. Odum described an ecosystem as a functional unit of nature.

Decomposers are the organisms which feed on dead organisms such as microbes. Spider feeds on other insects and acts as a predator and woodlouse found in forest and feeds on plant matter from the forest floor. Whereas earthworm and fungus can grow in pond water and feeds on dead organisms (plant or animal).

An ecosystem is a community of living organisms together with non-living components of their environment, functioning together as a system. The term 'ecosystem' was first proposed by Sir Arthur Tansley in 1935. The ecosystem can be recognized as a self-regulating and self-sustaining unit of 'landscape'. Hence, the correct answer is option B. ''landscape'.

(A) In deep sea ecosystem has all structural components,

The ecosystem is defined as the study of the interaction between the living organisms and the environment.