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Phenomenon of “Industrial melanism” demanstrat
- a)Natural selection
- b)Induced mutation
- c)Geographical isolation
- d)Reproductive isolation
Correct answer is option 'A'. Can you explain this answer?
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Phenomenon of “Industrial melanism” demanstrata)Natural selection b)In...
In England, before industrialization in 1860, it was observed that there were more white-winged moths on tree trunks than dark-winged or melanised moths. But after industrialization in 1920, there were more dark-winged moths in the same area. Before industrialization, the tree trunks were covered by white-coloured lichens. In that background, the white-winged moths survived but the dark-winged moths were eaten by predators. During post industrialization period, the tree trunks became dark due to industrial smoke and soot. Therefore, the white winged moths could not survive due to predators but dark-winged moths survived, i.e., the moths that were hidden in background survived. Thus, industrial melanism supports evolution by natural selection. So, the correct answer is 'Natural selection'.
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Phenomenon of “Industrial melanism” demanstrata)Natural selection b)In...
Industrial melanism was found in Biston betullaria or peppered moth in which the dark melanic form was selected by nature over the light form because of its higher chances of Adpatabillity and camouflage nature and the phenomenon involved is natural selection.
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Phenomenon of “Industrial melanism” demanstrata)Natural selection b)Induced mutationc)Geographical isolationd) Reproductive isolationCorrect answer is option 'A'. Can you explain this answer?
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