Tag: ecology and ecosystem
Questions Related to ecology and ecosystem
Which one of the following aspects is not a component of functional unit of ecosystem?
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Productivity
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Decomposition
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Energy flow
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Ecological pyramids
Interaction of biotic and abiotic components result in a physical structure, that is characteristic of each type of ecosystem. Components of ecosystem function as one single unit. Four important functional aspects of the ecosystem are (i) Productivity, (ii) Decomposition, (iii) Energy flow and (iv) Nutrient cycling. Ecological pyramids are a graphical representation of a number, biomass, and energy flow in an ecosystem.
An ecosystem is the biotic community which along with the physical environment forms an interacting system. It can be _________________.
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Man-made
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Temporary
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Natural
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All of these
Living things interact with ________ constantly.
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Organisms
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Environment
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Non-living things
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None of the above
Environment is living things and what is around them. It includes physical, chemical and other natural forces. Living things do not simply exist in their environment. They constantly interact with it. Organisms change in response to conditions in their environment. In the environment, there are interactions between plants, animals, soil, water, temperature, light and other living and non-living things.
Each ecosystem consist of ........... main components.
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Three
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Two
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Four
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Five
An ecosystem is made up of two components- biotic and abiotic. It includes the interaction of the living things which are the biotic components in a given area with the non-living environment which are the abiotic factors such as weather, earth, sun, soil, climate and atmosphere. Thus the correct answer is option B.
Which of the following terms defines the prefix 'eco'?
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Ecology
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Environment
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Adaptation
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Exchange
The word ecosystem was coined by Tansley a British botanist in 1935. Tansley defined ecosystem as a system resulting from the interaction between biotic and abiotic components of the environment. Biotic components include all living components and abiotic components include all physical factors such as weather, atmosphere, soil, etc. present in the surrounding. Hence the prefix 'eco' means environment.
The sphere of living matter together with water, air and soil on the surface of earth is called as
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Lithosphere
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Biosphere
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Hydrosphere
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Atmosphere
Biosphere is biologically inhabited part of earth along with its physical environment consisting of lower atmosphere, land and water bodies.
Which of the following is an artificial ecosystem?
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Rice-field
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Forest
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Grassland
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Lake
Rice-field (an agricultural field) is considered to be an artificial ecosystem. It is because of the following: It is man-made ecosystem and has all the components of the ecosystem. Abiotic factors which include air, water, soil etc. Biotic factors which include all the living organisms like plants, animals and microbes. It also comprises phenomena such as the flow of energy, food chains, food webs etc. Hence, option A is correct.
An ecosystem is a complex interacting system of
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Individual
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Population
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Community and their physical environment
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Community and their soil condition
An ecosystem is a segment of biosphere consisting of a community of living beings and the abiotic or physical environment interacting and exchanging materials between them. The interactions ultimately result in trapping of energy and production of biomass in an ecosystem. Therefore, the correct answer is option C.
Ecosystem is
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Open
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Closed
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Both A and B
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Neither open nor closed
As per thermodynamics, a system can be open or closed. An ecosystem is an open system because an open system is a system in which energy and nutrients are exchanged between the physical environment and living organisms. In a closed ecosystem, the waste product of an organism is used by the other organism, like decomposers. Therefore, the correct answer is option C.
Ecosystem is defined as
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Relation between plants and animals
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Relation between biotic and physical components
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Relation between producers and decomposers
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None of the above
An ecosystem is a community of organisms living and interacting with the non-living components of the environment within a system. It is made up of 2 types of components viz., biotic and abiotic. Ecosystem represents the relation between biotic and physical componenets.