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However, according to conventional principles of economic analysis it is necessary that a resource is used for it to acquire a value. Consequently economists traditionally value biological resources in terms of their direct uses, the raw materials they supply for human production and consumption. For example, a living tree can only be valued in terms of the price it would fetch in the market place as timber; natural forest will be valued based on timber value; coastal and marine ecosystems are valued in terms of fisheries. This disregards all those vital services and functions of biodiversity that are not directly seen or perceived. Consequently they are taken for granted although irreplaceable and vital to sustain local economies.
Species and genetic ma terial have long been exchanged in Asian markets (e.g. rice, timber and fish, utensils, cloth, etc) but there has been failure to give a value for the services provided by natural systems which therefore remain "worthless" in market terms. For example, the disruption in natural water regulation due to forest loss in the central highlands of Vietnam accounts for around 50 percent of seasonal fluctuations in rice production. It is important to recognize the vital importance of biodiversity services for local/national economy apart from sustaining life support systems.
C o l l i ba c i ll o si s It is commonly seen in newly born farm animals and occurs in septicaemic and enteric collibacillosis forms. E tiology: The disea
OPI A T E NARCOTICS - They suppress brain activity and relieve pain popularly known as pain killers. They are sedative and astringent in nature. An astringent cause
a) The image above is part of a DNA sequencing gel. Assuming this is the DNA coding strand and you are reading 5' -> 3' what are ALL the possible polypeptides this sequence cou
ENDOPLASMIC RETICULUM (ER) Eucaryotic celIs have two major compartments- nucleus and cytoplasm. Cytoplasm was known to have no structure until the discovery of electron micrsscop
Q. Describe the process of Rodent control? Rats and mice are destructive and cause huge loss of stored food commodities. They transmit pathogenic bacteria. Rats and mice are ge
What is the phenotype? Phenotype is every observable characteristic of a living being conditioned by its genes. A few phenotypes may be altered by nongenetic factors (for insta
Q. How is the circulatory system of reptiles characterized? What is the basic difference between the amphibian and the reptile heart? The circulatory system of beings of the cl
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Hemerythrins - Respiratory Pigments The Hemerythrins are rather rare. They take place in some animals belonging to the minor phyla like the sipunculid worms, some brachiopods,
In an outline form only, attempt the classification of the phylum arthropoda
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