State a reason for the increased population of dark coloured moths coinciding with the loss of lichens (on tree barks) during industrialization period in England.

Explain the increases in the numbers of melanic(dark winged) moths in the urban areas of post-industrialisation period in England.

Explain the increases in the numbers of melanic(dark winged) moths in the urban areas of post-industrialisation period in England.

Industrial melanism in peppered moth occurred due to natural selection . The significant reason for this is (a) the light coloured white moths could not be noticed by predatory birds after deposition of soots on bark of trees (b) mutation in light coloured moths due to increase in industrial pollution (c) advantageous selection of black moths on tree in polluted areas, resulting in increase population of black moths (d) advantageous selection of white moths on tree in polluted areas, resulting in increased population of white moths

In the case of peppered moth (Biston betularia) the black-coloured from became dominant over the light-coloured form in England during industrial revolution. This is an example of

In the case of peppered moth (Biston betularia) the black-coloured from became dominant over the light-coloured form in England during industrial revolution. This is an example of

In the case of peppered moth (Biston betularia) the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of

In the case of peppered moth (Biston betularia) the black-coloured from became dominant over the light-coloured form in England during industrial revolution. This is an example of

Given below are the three statement each with one or two blanks. Select the option which correctly fills up the balnks in any two statements. (A) For a long time it was also believed that life came out of decaying and rotting matter like straw, mud, etc. This was the theory of i (B) During post-industrilasiation period, the tree trunks became dark due to industrial smoke and soots. Under this condition the i did not survive due to predators, while ii survived. (C) Lamrack said that evolution of life forms had occurred but driven by i of organs.

Before industrialization it was observed that there were more white winged moths on trees than dark winged moths Why?

An interesting observation supporting evolution by natural selection comes from England. In a collection of moths made in the 1850s (before industrialization) . Which of the following were true at that time ? P - Pollution was very less. Q - Thick growth of almost white - colored lichen covered the moths. R - Dark coloured moths were picked out by predators.