Tag: ecosystem
Questions Related to ecosystem
Which of the following is the natural method of hybridisation?
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Interspecific hybridisation
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Cross pollination
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Somatic cell hybridisation
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All of the above
Cross pollination is the transfer of pollen from the anthers of a flower of one plant to the stigma of a flower of another plant. It is a natural process.
Select the wrong statement.
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Forest provide variety of products.
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Forest have great plant diversity.
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Forest does not conserve soil.
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Forest conserves water.
It is wrong that the forest do not conserve soil. Actually forest prevent soil erosion by covering the soil by the canopy of the plants and reduces the impact of rain water and wind on the top layer of soil. The roots hold the soil and also prevent soil erosion.
The productive area required to produce all the resources for humanity to consume and to absorb all its waste is known as
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A habitat
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An ecosystem
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An ecological footprint
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The biosphere
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The carrying capacity
Which of the following describes the ecosystem services?
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Carbon fixation
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Pollination
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Perennial water
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All of the above
A functional aspect of an ecosystem is
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Producers, consumers and abiotic environment
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Regulation of populations
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Light, temperature, oxygen and carbon dioxide
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Both A and C
The functional aspects of an ecosystem include the regulation of populations, flow of energy, biogeochemical cycles, and the flow of nutrients. It also includes ecological succession, food chain, ecological pyramid, food web. Populations are regulated in an ecosystem through these food chains.
An ecosystem does not normally alter because it is in a state of
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Homeostasis
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Imbalance
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Deficient light
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Deficient components
Ecosystem is made up of living and nonliving things. Living things include plants and animals. Nonliving things includes air, water, land. It is composed of organisms interacting within communities. The importance of ecosystem lies in both cycling of minerals and flow of energy. It does not alter normally because it is in a state of homeostasis. There is always balance of organisms in an ecosystem within themselves and with changing environment.
Ecosystem creates
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Food chains and food web
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Food web
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Habitats
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None of the above
An ecosystem is made up of living and nonliving things. Living things include plants, animals. Nonliving things include air, water. It creates food chains and food web. A food chain is series of plants/animals which are interrelated in the form of organism being eaten as food by the other. plants are producers. The animals eating plants are called as primary consumers and animals eating primary consumers are called as secondary consumers. Decomposers are those which decomposes the waster organic matter. Food web is various interlinked food chains in a community.
Importance of ecosystem lies in
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Cycling opmaterials
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Flow of energy
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Both A and B
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None of the above
Ecosystem is made up of living and nonliving things. Living things include plants and animals. Nonliving things includes air, water, land. It is composed of organisms interacting within communities. The importance of ecosystem lies in both cycling of minerals and flow of energy. It contributes to the cycling of minerals and flow of energy.
According to Robert Constanza, 50% of the total cost of ecosystem services goes to
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Climate regulation
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Soil formation
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Recreation
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Nutrient cycling
Robert Constanza gave price tags to ecosystem services. According to him, soil formation accounts for 50% of the ecosystem service. It is the most important ecosystem service. The other ecosystem services include purify water and air, mitigate droughts and floods, nutrient cycling, habitat for wild life.
Which one is included under ecosystem services?
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Protection of soil
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Conservation and purification of water
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Climate control
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All of the above
The benefits which we obtain from the regulation of ecosystem processes such as climate regulation, natural hazard regulation, water purification, and waste management, pollination or pest control are known as Ecosystem services. Agroecosystems, forest ecosystems, grassland ecosystems, and aquatic ecosystems are included under these ecosystems. These are also known as regulating services. Examples include Climate regulation, Waste treatment, and disease regulation.