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...Chapter diversity is not only a characteristic of living organisms but and populations also content in biology textbooks presented either as botany zoology microbiology or classical modern the latter euphemism for molecular aspects ecosystem luckily we have many threads which weave different areas biological information into unifying principle ecology one such thread gives us holistic biodiversity conservation perspective to essence understanding know how while remaining an individual published interact with other physical habitats group environmental issues hence behave like organised wholes i e population community even whole biosphere be explains all this particular aspect ncert study anthropogenic degradation socio political it has raised unit describes well takes critical view above ramdeo misra revered father india born on august obtained ph d under prof w h pearsall frs from leeds university uk he established teaching research at department banaras hindu varanasi his laid founda...