zoology biology msc heart human resources presentation accessory excretory organs blood peritonium kidneys pila globosa organisms invertebrate zoology excretory organs keber's organ bojanus organ unio pila mollusca invertebrates excretion food sources body exercise healthy eating food awareness education healthcare health diet malnutrition deficiencies nutrition physiology vitamin e vitamins genes isolation reproductive isolation natural selection darwin chromosomal mutations mutations genetic drift geographical barriers sympatric peripatric parapatric allopatric species science evolution speciation india leopard rhesus monkey ethology human wildlife conflict man animal conflict animal behaviour ecology
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