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Q. Explain about precautionary principle?
The ethical values of biodiversity highlights the intrinsic value of biodiversity for its own sake and it is independent of the varied economic, social and cultural uses of the large number o f species discovered by human communities. It underscores the fact that humans are only one of the millions of species that inhabit the earth, while each species is unique and is the result of evolutionary processes without human intervention, so that every species has a natural right to exist.
However, it is also difficult to maintain all of the existing biological diversity for purely ethical reasons. Whilst the killing of any living organism, or a particular species may be morally unacceptable to some people, there are problems in extending this argument to the conservation of biological diversity. As you have studied earlier, any individual organism that is not genetically identical to another represents a distinct component of biodiversity, and accordi ng to ethical arguments it is difficult to justify the destruction of any facet of biodiversity. It is easy to understand the objection to the killing of a charismatic species such as an elephant on ethical grounds, but it can be argued that ethically it i s equally objectionable to eat rice which is grown from genetically diverse seeds or to destroy pests and disease causing organisms as we are reducing genetic diversity! However it may be more difficult to justify this on ethical grounds.
Explain the term- Horizons These processes take a long time- may be a few thousand years to create a soil. As the time passes, the soil matures and generally becomes deeper and
Testing whether roots absorb water and suspended solids Three same plants are inserted into test tubes having 1, water; 2, red ink; 3, a suspension of Congo red. After a some d
Minerals :-Nickel Food Source Plant foods Nutritional Functional role Essential nutrient: Deficiency in humans unknown. Catalyst: hydrogenation in
What are cytokinins? Where are they made? Cytokinins are phytohormones active in the promotion of cellular division; they slow down the aging of tissues and act together with a
Q. Generally how does a male animal realize that the female is receptive to copulation? In most vertebrate species with internal fecundation the females have reproductive cycle
How does the excretory system of nematodes work? The metabolic residuals of nematodes are collected by two longitudinal lateral excretory channels that open in one excretory po
Explain Future challenges of connecting models and data? Since biological systems are complex, models of biological systems are also complex, and matching models and data is a
What are the three phases into which the cell respiration is divided? The three phases of aerobic cell respiration are glycolysis, Krebs cycle and respiratory chain (also calle
What is Procambium? The procambium produces cells that eventually become the vascular tissues xylem and phloem. These primary vascular tissues form a core in the center of th
why is virus an exception of cell theory
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