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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.
A v i a n leukosis (Sarcoma group of retroviruses) This is a complex of viral diseases caused by an avian retrovirus with various manifestations such as lymphoid leukosis,
Q What is the system that permits fixation and movement to echinoderms? The system that permits fixation and movement to substrates in echinoderms is called the ambulacral syst
difference between protonephridia and metanephridia
Determine some Common Micronutrient Deficiencies? Vitamin A deficiency Iron deficiency anaemia Iodine deficiency disorders Zinc deficiency
Most of the fungi normally observed are members of this group of fungi that includes toadstools, mushrooms and puffballs. This group of fungi is termed as: a) Phycomycetes (pro
Explain the Identification of Fungi and Yeasts? In this we learnt about different staining techniques used to visualize bacterial cell morphology. What about identification tec
In humans, attached earlobes are a dominant feature over free earlobes while hypertrichosis of the ear is a holandric (Y-linked) feature. A person with attached earlobes and extens
Q. What is the mitosis? What is the significance of mitosis? Mitosis is the process in which one eukaryotic cell divides into two cells identical to the parent cell generally i
Phases of Karyokinesis: Karyokinesis can further be divided into prophase, metaphase, anaphase and telophase. 1-Prophase: (pro= before) Chromatin: During Interphase (non
What are the factors responsible for corneal hydration? The factors responsible for corneal hydration are as follows: i. Stromal swelling pressure ii. Barrier function of
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