Biology
The selective agent that was responsible for causing the change in peppered moth was :
- Lichens
- Humans
- Birds
- Smoke
Answer
Smoke
Reason — Earlier the light colour winged moths outnumbered dark winged moths as they could escape the predators but after industrialisation the dark winged moths were able to escape the predators while light colour winged moths were preyed upon. Therefore, the smoke acted as selective agent.
Related Questions
Which of the following is not a vestigial organ ?
- Vermiform appendix
- Caecum
- Wisdom teeth
- Ear pinna
The first scientist who proposed his theory for evolution was ;
- Darwin
- Lamarck
- Mendel
- Wallace
The theory proposed by Lamarck is :
- Autogenesis theory
- Germplasm theory
- Theory of inheritance of acquired characters
- Theory of abiogenesis
Charles Darwin explained the origin of species through:
- Mutation
- Natural selection
- Acquired characters
- Hybridization