In one insect species, the wings are usually pale in colour, which allows them to blend in with pale tree trunks. However, some individuals in the same species have wings that are darker. After several years, environmental changes make the tree trunks darker in colour. As a result, insects with dark-coloured wings become more common than those with pale-coloured wings in this species. Which process brings about this change in the proportion of insects with dark-coloured wings?
- Abiotechnology
- Bconservation
- Cnatural selection
- Dselective breeding