This is an example of industrial melanism. (i) Before industrial revolution in England, there were many white winged/ dull gray moths. Trees were covered with lichens and white coloured moths could survive better due to white colour. (ii) After industrialisation, more black/melanic moths appeared. (iii) This may be due to soot covered vegetation which allowed melanic moths to protect themselves by camouflaging. (iv) It indicated that the organisms which adapt themselves better, survive and reproduce and increase in population.
Explain the increase in the numbers of melanic (dark winged) moths in the urban areas of post-industrialisation period in England.
Answers
Subhash
This is an example of industrial melanism.
(i) Before industrial revolution in England, there were many white winged/ dull gray moths. Trees were covered with lichens and white coloured moths could survive better due to white colour.
(ii) After industrialisation, more black/melanic moths appeared.
(iii) This may be due to soot covered vegetation which allowed melanic moths to protect themselves by camouflaging.
(iv) It indicated that the organisms which adapt themselves better, survive and reproduce and increase in population.