Q. Camouflage helps organisms to blend with their surrounding so that they can escape predators. Which of the following is an example of camouflage?
Solution:
Industrial melanism
- Industrial melanism is an observation made in England that supports 'evolution by natural selection'.
Time of Moth Collection Observation Reason behind The 1850s (Before Industrialization sets in) On trees, White-winged moths > Dark-winged (or melanized) moths Before industrialisation, white-coloured lichen grow and almost covered the trees because of which white-winged moth survived due to white background the but the dark-colored moth was more spotted and picked up by the predators. The 1920s (After Industrialization) On trees, Dark -winged moths > White-winged moths Lichens do not grow in polluted areas, so the dark moths were able to camouflage (hide in the background) themselves against the tree trunks became dark due to industrial smoke and soot. Thus they survived in more numbers. White-winged moth were more spotted and picked up by the predators in comparison to the dark-winged.
| Time of Moth Collection | Observation | Reason behind |
| The 1850s (Before Industrialization sets in) | On trees, White-winged moths > Dark-winged (or melanized) moths | Before industrialisation, white-coloured lichen grow and almost covered the trees because of which white-winged moth survived due to white background the but the dark-colored moth was more spotted and picked up by the predators. |
| The 1920s (After Industrialization) | On trees, Dark -winged moths > White-winged moths | Lichens do not grow in polluted areas, so the dark moths were able to camouflage (hide in the background) themselves against the tree trunks became dark due to industrial smoke and soot. Thus they survived in more numbers. White-winged moth were more spotted and picked up by the predators in comparison to the dark-winged. |