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Q. Optional use values of biodiversity?
Optional values are associated with potential use in the future. Accordingly one opts to conserve biodiversity based on the hope that it could be used directly or indirectly in the future, perhaps as a source of genetic material, for pharmaceuticals, crop enhancement, etc. There are many indications that some societies or people are willing to pay an additional sum, over and above what a future use value of a biological resource in worth, in order to guarantee the future access to the resource. For example, when species go extinct their potential is never discovered and we may have lost that very thing that is essential to save millions of lives, enhance food production or provide the ability to resist future diseases and pest attacks. But once lost, these resources will remain unknown and undiscovered forever.
This consideration necessitates leaving our options open to have access to certain gene pools that may be of use in the future, especially in the face of climate change, as maximum genetic diversity promoted maximum flexibility of species and ecosystems to respond to changes in climate.
State three ways in which the absorbing surface of the small intestine is increased. The absorbing surface of the small intestine is increased by:- (a) being very long
Biota of Littoral Zone This zone is the shore region of the marine ecosystems and is subject to violence of waves and tides, fluctuation of water level and variability of temp
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Q. Are there diverse proteins made by the same total number of amino acids? Diverse proteins with the same total number of amino acids may exist. In such cases the discriminati
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What is peri-implantitis? Peri-implantitis as defined by Meffert is the progressive loss of peri-implant bone as well as soft tissue inflammatory changes. Bacterial invasion of
Q. How is the gymnosperm seeds formed? What are the ploidies of the structures that compose the seeds? Their seeds are produced from differentiation of the megasporangia in the
Draw a diagram of the longitudinal section of a mature anatropous ovule and label any ten parts in it.
why the small intestine is longer in herbivores as comparison to carnivores animals
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