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Valuation of biological resources includes the process of deriving a monetary value to the things that are not sold in the market. Examples are the value given to fuelwood gathered in the forest, water filtration provided in a wetland or biological resource that may supply new medicines in the future. Valuation is essential for a "social cost- benefit" analysis of biodiversity (i.e. analyzing the costs and benefits of maintaining biodiversity for a society), and is linked to "environmental accounting" which means the modification of national accounts to take into consideration the economic role of the environment. Many countries in the world are now attempting this. It is believed that over 25 countries have experimented with environmental accounting over the past 20 years and a few European countries have already set up physical accounting systems that are routinely complied and applied to economic and environmental policy making. Biodiversity valuation can contribute to constructing environmental accounts at the national level.
What is Fontan Operation and Modifications ? Earlier reported to have 20 per cent mortality, it has come down to five per cent in specialized centres. In the earlier series th
Explain Changing Body Composition with Ageing? With ageing, a progressive decline in the water content and the lean body mass is accompanied by an increasing proportion of body
Atmosphere is a multilayer blanket of various gases such as N2 (78.80%), O2 (20.95%), Ar(0.93%), CO2 (0.03%), water vapor and some other gases. This envelope extends from earth's c
What is the mode of nutrition in fish,human,amoeba,scorpian & toad ?
Classification of proteins based on chemical properties? Depending on their chemical properties and optical activity, the amino acids in proteins are classified under the follo
the appendages of arthropods; a. may serve as walking legs, b. may be modified into atennae, c. may be modified into large pincers, or d. all of the above
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Explain about the terms - bursae and captacula? Paired water-filled sac located at base of each arm of a brittle star. Cilia in bursae circulate water. Its surface is significa
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Countercurrent flow is the arrangement by which fish get oxygen from the water which flows by the help of their gills. The water flows across the respiratory surface of the gill i
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